Issue contents
Download PDF of article
Download CIF
3D view
Navigation
Highlighting
Dictionary of Crystallography reference
IUPAC Gold Book reference
more ...
Download citation
FormatBIBTeX
EndNote
RefMan
Refer
Medline
CIF
SGML
Plain Text
share
Previous article
Next article
Previous article
Issue contents
Download PDF of article
Download CIF
3D view
Navigation
Highlighting
Dictionary of Crystallography reference
IUPAC Gold Book reference
more ...
Download citation
FormatBIBTeX
EndNote
RefMan
Refer
Medline
CIF
SGML
Plain Text
share
Next article

organic compounds\(\def\hfill{\hskip 5em}\def\hfil{\hskip 3em}\def\eqno#1{\hfil {#1}}\)

Journal logoCRYSTALLOGRAPHIC
COMMUNICATIONS
ISSN: 2056-9890
Volume 66| Part 12| December 2010| Page o3356
https://doi.org/10.1107/S1600536810043709

A functionalized enol lactone containing a protected α-amino acid

Giuseppe Bruno,a Francesco Nicoló,a* Massimiliano Cordaro,b Giovanni Grassib and Francesco Risitanob

aDipartimento di Chimica Inorganica Chimica Analitica e Chimica Fisica, Universitá degli Studi di Messina, Via Salita Sperone 31, I-98166 Vill. S. Agata, Messina, Italy, and bDipartimento di Chimica Organica e Biologica, Universitá degli Studi di Messina, Via Salita Sperone 31, I-98166 Vill. S. Agata, Messina, Italy
*Correspondence e-mail: fnicolo@unime.it

(Received 4 October 2010; accepted 26 October 2010; online 30 November 2010)

The crystal structure of N-(3,9-dimethyl-4-phenyl-2,5-dioxo-3,4-dihydro-2H,5H-pyrano[3,2-c]chromen-3-yl)-N-methylbenzamide methanol monosolvate, C28H23NO5·CH3OH, has been determined at room temperature by X-ray diffraction. Structural parameters are discussed with reference to ab initio calculations.

Related literature

For structures containing enol lactone fragments, see: Murray et al. (1982[Murray, R. D. H., Medez, J. & Brown, S. A. (1982). In The Natural Coumarins: Occurence, Chemistry and Biochemistry. New York: Wiley.]); Harborne & Baxter (1999[Harborne, J. B. & Baxter, H. (1999). The Handbook of Natural Flavonoids. Chichester: Wiley.]); Qabaja et al. (2000[Qabaja, G. E., Perchellet, M., Perchellet, J. P. & Jones, G. B. (2000). Tetrahedron Lett. 41, 3007-3010.]). For related structures containing a coumarin fragment, see: Yu et al. (2003[Yu, X. L., Scheller, D., Rademacher, O. & Wolff, T. (2003). J. Org. Chem. 68, 7386-7399.]). For a phenyl­furo[3,2-c]chromen-4-one structure, see: Bruno et al. (2001[Bruno, G., Nicoló, F., Rotondo, A., Foti, F., Risitano, F., Grassi, G. & Bilardo, C. (2001). Acta Cryst. C57, 493-494.]). For related furan-5-one structures, see: Grassi et al. (2002[Grassi, G., Cordaro, M., Bruno, G. & Nicolò, F. (2002). Helv. Chim. Acta, 85, 196-205.]). For the Cambridge Structural Database, see: Allen (2002[Allen, F. H. (2002). Acta Cryst. B58, 380-388.]). For the GAUSSIAN98 software used for the ab initio calculations, see: Frisch et al. (1998[Frisch, M. J. et al. (1998). GAUSSIAN98. Gaussian, Inc., Pittsburgh, Pennsylvania, USA.]). For the synthetic process used, see: Grassi et al. (2003[Grassi, G., Risitano, F., Foti, F., Cordaro, M., Bruno, G. & Nicolò, F. (2003). Chem. Commun. pp. 1868-1869.]). For background to O—C—O bond-angle asymmetry, see: Kokila et al. (1996[Kokila, M. K., Puttaraja, Kulkarni, M. V. & Shivaprakash, N. C. (1996). Acta Cryst. C52, 2078-2081.]).

[Scheme 1]

Experimental

Crystal data

  • C28H23NO5·CH4O

  • Mr = 485.52

  • Monoclinic, P 21 /n

  • a = 10.7435 (14) Å

  • b = 9.9056 (17) Å

  • c = 23.298 (3) Å

  • β = 94.817 (7)°

  • V = 2470.7 (6) Å3

  • Z = 4

  • Mo Kα radiation

  • μ = 0.09 mm−1

  • T = 298 K

  • 0.58 × 0.38 × 0.36 mm
Data collection

  • Siemens P4 diffractometer

  • Absorption correction: ψ scan (Kopfmann & Huber, 1968[Kopfmann, G. & Huber, R. (1968). Acta Cryst. A24, 348-351.]) Tmin = 0.870, Tmax = 0.968

  • 9535 measured reflections

  • 4347 independent reflections

  • 2843 reflections with I > 2σ(I)

  • Rint = 0.036

  • 3 standard reflections every 197 reflections intensity decay: none
Refinement

  • R[F2 > 2σ(F2)] = 0.049

  • wR(F2) = 0.132

  • S = 1.01

  • 4347 reflections

  • 331 parameters

  • H-atom parameters constrained

  • Δρmax = 0.18 e Å−3

  • Δρmin = −0.31 e Å−3

Table 1
Hydrogen-bond geometry (Å, °)

D—H⋯A D—H H⋯A D⋯A D—H⋯A
O35—H35⋯O27 0.82 1.99 2.784 (3) 163
C9—H9⋯O35i 0.93 2.46 3.320 (4) 153
C19—H19⋯O11ii 0.93 2.60 3.403 (3) 144
Symmetry codes: (i) [x-{\script{1\over 2}}, -y+{\script{3\over 2}}, z-{\script{1\over 2}}]; (ii) -x+2, -y+2, -z+1.

Data collection: XSCANS (Bruker, 1999[Bruker (1999). XSCANS. Release 2.31. Bruker AXS Inc., Madison, Wisconsin, USA.]); cell refinement: XSCANS; data reduction: SHELXTL (Sheldrick, 2008[Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.]); program(s) used to solve structure: SIR97 (Altomare et al., 1999[Altomare, A., Burla, M. C., Camalli, M., Cascarano, G. L., Giacovazzo, C., Guagliardi, A., Moliterni, A. G. G., Polidori, G. & Spagna, R. (1999). J. Appl. Cryst. 32, 115-119.]); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008[Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.]); molecular graphics: XPW (Siemens, 1996[Siemens (1996). XPW. Siemens Analytical X-ray Instruments Inc., Madison, Wisconsin, USA.]); software used to prepare material for publication: PARST97 (Nardelli, 1995[Nardelli, M. (1995). J. Appl. Cryst. 28, 659.]) and SHELXL97.

Supporting information

Crystal structure: contains datablocks global, I. DOI: https://doi.org/10.1107/S1600536810043709/jh2217sup1.cif

Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536810043709/jh2217Isup2.hkl

checkCIF report


Comment top

Highly functionalized enol lactones constitute an attractive class of compounds not only because of their molecular architecture but also because of the interesting biopharmacological activity often shown by compounds possessing this subunit in their molecular skeleton (Murray et al., 1982; Harborne & Baxter, 1999; Qabaja et al., 2000).

The molecule 3 is mainly constituted by a cumarine system which is further [3,2-c]-fused with a 3,4-dihydro-pyran-2-one ring carrying at posistion 3 a methyl and a methyllbenzamide group while a phenyl moiety is placed at 4. Then these C atoms at 3 and 4 are chiral centers showing the same configuration. Due to the P21/n centric space group, both the S,R and R,S diastereomers are present in the solid state and the crystals represent a perfect racemic mixture. The methyl cumarin fragment is planar within experimental error; bonds distances and angles of this moiety are in good agreement with the corresponding values reported for such fragments (Yu et al., 2003). The methylbenzamide fragment is not planar and shows the usual bond geometry values: the phenyl ring is rotated by 60.9 (3)° with respect to the amide moiety. The three carbonyl groups have very different C═O bond distances and their O atoms are involved in several intra- and intermolecular hydrogen interactions. The significant elongation of C(26)—O(27) bond might be related to the strongest hydrogen interaction of its O atom with the co-crystallized methanol molecule: O(27)···H(35) and O(27)···O(35) are 1.99 and 2.784 (3) Å, respectively, while O(35)—H(35)···O(27) is 163°. The sum of the valence angles around N(24) is 357.7 (2)° and evidences the not significant pyramidalization of the nitrogen. Therefore the nitrogen geometry appears planar and might be related to its sp2 hybridization caused by the delocalization of its lone-pair over the carbonyl fragments as also suggested by the length of the bonds involving the N(24) atom. Phenyl group bonded to C(26) is rotated with respect to this system (the N(24)—C(26)—C(28)—C(29) torsion angle is 60.5 (3)°) and does not participate to the possible π-electronic delocalization as evidenced by the C(28)—C(26) single-bond length value [1.491 (3) Å]. In the crystal lattice, each pair of molecules related by an inversion centre shows a π-interaction of 3.4 (1) Å between their planar furo[3,2-c]coumarin fragments. The substituent phenyl rings, despite their out-of-plane rotation, are directed far from the flat central molecular bulk and do not obstacle the strong π-stacking in the formation of the centrosymmetric couple, remaing at its surface as the co-crystallized methanol. Therefore crystal packing is constituted by dimeric units interconnected by several weak hydrogen bonds involving the O atoms.

Here, as well as already found in the phenyl-furo[3,2-c]chromen-4-one (Bruno et al., 2001) and in other related coumarin compounds reported in the October 2004 (Version 5.27) release of CSD (Allen, 2002), an important asymmetry in the O—C—O bond angles has been detected [β = O(1)—C(2)—O(11), 117.4 (2)° and α = C(3)—C(2)—O(11), 125.1 (2)°] Δ(α-β) = 7.7 (2)°. Even more similar significant differences have been observed in other molecules containing the furan-5-one fragment, as we have already reported (Grassi et al., 2002).

Ab initio and DFT calculations on some models have been performed in order to clarify the relevant observed asymmetry in the O—C—O bond angles of the cumarinic fragment. From these results we can conclude that the observed and calculated carbonyl distortion arises exclusively from electronic rather than steric factors. However further statistical and theoretical study are necessary to better clarify the real nature of this asymmetry.

Related literature top

For structures containing enol lactone fragments, see: Murray et al. (1982); Harborne & Baxter (1999); Qabaja et al. (2000). For related structures containing coumarin fragment, see: Yu et al. (2003). For a phenylfuro[3,2-c]chromen-4-one structure, see: Bruno et al. (2001). For related furan-5-one structures, see: Grassi et al. (2002). For the Cambridge Structural Database, see: Allen (2002). For the GAUSSIAN98 software used for the ab initio calculations, see: Frisch et al. (1998). For the synthetic process used, see: Grassi et al. (2003). For background to O—C—O bond-angle asymmetry, see: Kokila et al. (1996). [Please note four added references and check added text]

Experimental top

Fig. 2.

We recently described a novel kind of cyclo-condensation process that converts two equivalents of a münchnone and a 1,3-dicarbonyl compound into a functionalized enol lactone containing a protected α-amino acid (Grassi et al., 2003). Here we report structural characterization of the enol lactone 3 synthesized by 4,5-dimethyl-2-phenyl-1,3-oxazolium-5-late (DMPO) 2 and 4-hydroxy-6-methylcoumarin 1 (an unsymmetrical enolisable dicarbonyl substrate). Single crystals of 3 suitable for X-ray analysis were obtained by slow evaporation from a methanole solution.

In trying to get some insight regarding this important asymmetry in the O—C—O bond angle of the cumarinic fragment an ab initio and DFT calculations on some model compounds, such as the bicyclic 3,4-dyhidro-pyrano[4,3-b]pyran-2,5-dione, a series of 3-substituted pyran-2-one, the cumarine and 3-methyl-cumarine, were performed by using the basis set 6-31+G(d,p) in GAUSSIAN98 (Frisch et al., 1998). At all level of calculations this controversial asymmetry (Kokila et al., 1996) around carbonilic C atom is consistent with the X-ray structural observations.

Refinement top

A suitable colourless single-crystal was mounted on a capillary glass fiber. The intensity data were collected at room temperature up to 2θ = 50° by using the ω-2θ scan technique with variable scan speed on a Siemens P4 4-cirlce diffractometer with graphite monochromated Mo Kα radiation. Lattice parameters were obtained from least-squares refinement of the setting angles of 59 reflections with 14 < 2θ < 35°. Intensities were corrected for Lonrentz polarization and then for absorption effetcts. No crystal deterioration was revealed during irradiation. The structure, solved by standard Direct Methods, was completed and refined by a combination of least squares technique and Fourier Syntheses. Whereas several H atoms were located on final ΔF map, the H atoms were included in the refinement among the "riding model" method with the X—H bond geometry and the H isotropic displacement parameter depending on the parent atom X. The refinement, with all non H atoms anisotropic and carried out by the full matrix least-square technique, has included a parameter for extinction correction. The last difference Fourier map showed no significant density residuals. One terminal methyl (C16) appeared to be affected by a significant rotational disorder and its H's group has to be split over two symmetric positions with equal occupancy 0.5; the disorder of the methanol molecule causes its large thermal ellipsoids.

Structure description top

Highly functionalized enol lactones constitute an attractive class of compounds not only because of their molecular architecture but also because of the interesting biopharmacological activity often shown by compounds possessing this subunit in their molecular skeleton (Murray et al., 1982; Harborne & Baxter, 1999; Qabaja et al., 2000).

The molecule 3 is mainly constituted by a cumarine system which is further [3,2-c]-fused with a 3,4-dihydro-pyran-2-one ring carrying at posistion 3 a methyl and a methyllbenzamide group while a phenyl moiety is placed at 4. Then these C atoms at 3 and 4 are chiral centers showing the same configuration. Due to the P21/n centric space group, both the S,R and R,S diastereomers are present in the solid state and the crystals represent a perfect racemic mixture. The methyl cumarin fragment is planar within experimental error; bonds distances and angles of this moiety are in good agreement with the corresponding values reported for such fragments (Yu et al., 2003). The methylbenzamide fragment is not planar and shows the usual bond geometry values: the phenyl ring is rotated by 60.9 (3)° with respect to the amide moiety. The three carbonyl groups have very different C═O bond distances and their O atoms are involved in several intra- and intermolecular hydrogen interactions. The significant elongation of C(26)—O(27) bond might be related to the strongest hydrogen interaction of its O atom with the co-crystallized methanol molecule: O(27)···H(35) and O(27)···O(35) are 1.99 and 2.784 (3) Å, respectively, while O(35)—H(35)···O(27) is 163°. The sum of the valence angles around N(24) is 357.7 (2)° and evidences the not significant pyramidalization of the nitrogen. Therefore the nitrogen geometry appears planar and might be related to its sp2 hybridization caused by the delocalization of its lone-pair over the carbonyl fragments as also suggested by the length of the bonds involving the N(24) atom. Phenyl group bonded to C(26) is rotated with respect to this system (the N(24)—C(26)—C(28)—C(29) torsion angle is 60.5 (3)°) and does not participate to the possible π-electronic delocalization as evidenced by the C(28)—C(26) single-bond length value [1.491 (3) Å]. In the crystal lattice, each pair of molecules related by an inversion centre shows a π-interaction of 3.4 (1) Å between their planar furo[3,2-c]coumarin fragments. The substituent phenyl rings, despite their out-of-plane rotation, are directed far from the flat central molecular bulk and do not obstacle the strong π-stacking in the formation of the centrosymmetric couple, remaing at its surface as the co-crystallized methanol. Therefore crystal packing is constituted by dimeric units interconnected by several weak hydrogen bonds involving the O atoms.

Here, as well as already found in the phenyl-furo[3,2-c]chromen-4-one (Bruno et al., 2001) and in other related coumarin compounds reported in the October 2004 (Version 5.27) release of CSD (Allen, 2002), an important asymmetry in the O—C—O bond angles has been detected [β = O(1)—C(2)—O(11), 117.4 (2)° and α = C(3)—C(2)—O(11), 125.1 (2)°] Δ(α-β) = 7.7 (2)°. Even more similar significant differences have been observed in other molecules containing the furan-5-one fragment, as we have already reported (Grassi et al., 2002).

Ab initio and DFT calculations on some models have been performed in order to clarify the relevant observed asymmetry in the O—C—O bond angles of the cumarinic fragment. From these results we can conclude that the observed and calculated carbonyl distortion arises exclusively from electronic rather than steric factors. However further statistical and theoretical study are necessary to better clarify the real nature of this asymmetry.

For structures containing enol lactone fragments, see: Murray et al. (1982); Harborne & Baxter (1999); Qabaja et al. (2000). For related structures containing coumarin fragment, see: Yu et al. (2003). For a phenylfuro[3,2-c]chromen-4-one structure, see: Bruno et al. (2001). For related furan-5-one structures, see: Grassi et al. (2002). For the Cambridge Structural Database, see: Allen (2002). For the GAUSSIAN98 software used for the ab initio calculations, see: Frisch et al. (1998). For the synthetic process used, see: Grassi et al. (2003). For background to O—C—O bond-angle asymmetry, see: Kokila et al. (1996). [Please note four added references and check added text]

Computing details top

Data collection: XSCANS (Bruker, 1999); cell refinement: XSCANS (Bruker, 1999); data reduction: SHELXTL (Sheldrick, 2008); program(s) used to solve structure: SIR97 (Altomare et al., 1999); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: XPW (Siemens, 1996); software used to prepare material for publication: PARST97 (Nardelli, 1995) and SHELXL97 (Sheldrick, 2008).

Figures top
[Figure 1] Fig. 1. Perspective view of the asymmetric unit with numbering scheme of compound 3. Dashed line represents H-bond with the co-crystallized methanol hydrogen. Ellipsoids are drawn at 20% of probability level while hydrogen size is arbitrary.
[Figure 2] Fig. 2. Reaction scheme.
N-(3,9-dimethyl-4-phenyl-2,5-dioxo-3,4-dihydro- 2H,5H-pyrano[3,2-c]chromen-3-yl)-N-methylbenzamide methanol monosolvate top
Crystal data top
C28H23NO5·CH4OF(000) = 1024
Mr = 485.52Dx = 1.305 Mg m−3
Monoclinic, P21/nMo Kα radiation, λ = 0.71073 Å
Hall symbol: -P 2ynCell parameters from 59 reflections
a = 10.7435 (14) Åθ = 7.7–17.5°
b = 9.9056 (17) ŵ = 0.09 mm−1
c = 23.298 (3) ÅT = 298 K
β = 94.817 (7)°Irregular, colourless
V = 2470.7 (6) Å30.58 × 0.38 × 0.36 mm
Z = 4
Data collection top
Siemens P4
diffractometer		2843 reflections with I > 2σ(I)
Radiation source: sealed tubeRint = 0.036
Graphite monochromatorθmax = 25.0°, θmin = 2.0°
ω scansh = −12→12
Absorption correction: ψ scan
(Kopfmann & Huber, 1968)		k = −1→11
Tmin = 0.870, Tmax = 0.968l = −27→27
9535 measured reflections3 standard reflections every 197 reflections
4347 independent reflections intensity decay: none
Refinement top
Refinement on F2Secondary atom site location: difference Fourier map
Least-squares matrix: fullHydrogen site location: inferred from neighbouring sites
R[F2 > 2σ(F2)] = 0.049H-atom parameters constrained
wR(F2) = 0.132 w = 1/[σ2(Fo2) + (0.0533P)2 + 0.7913P]
where P = (Fo2 + 2Fc2)/3
S = 1.01(Δ/σ)max = 0.001
4347 reflectionsΔρmax = 0.18 e Å−3
331 parametersΔρmin = −0.31 e Å−3
0 restraintsExtinction correction: SHELXL97 (Sheldrick, 2008), Fc*=kFc[1+0.001xFc2λ3/sin(2θ)]-1/4
Primary atom site location: structure-invariant direct methodsExtinction coefficient: 0.0036 (8)
Crystal data top
C28H23NO5·CH4OV = 2470.7 (6) Å3
Mr = 485.52Z = 4
Monoclinic, P21/nMo Kα radiation
a = 10.7435 (14) ŵ = 0.09 mm−1
b = 9.9056 (17) ÅT = 298 K
c = 23.298 (3) Å0.58 × 0.38 × 0.36 mm
β = 94.817 (7)°
Data collection top
Siemens P4
diffractometer		2843 reflections with I > 2σ(I)
Absorption correction: ψ scan
(Kopfmann & Huber, 1968)		Rint = 0.036
Tmin = 0.870, Tmax = 0.9683 standard reflections every 197 reflections
9535 measured reflections intensity decay: none
4347 independent reflections
Refinement top
R[F2 > 2σ(F2)] = 0.0490 restraints
wR(F2) = 0.132H-atom parameters constrained
S = 1.01Δρmax = 0.18 e Å−3
4347 reflectionsΔρmin = −0.31 e Å−3
331 parameters
Special details top

Geometry. All e.s.d.'s (except the e.s.d. in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell e.s.d.'s are taken into account individually in the estimation of e.s.d.'s in distances, angles and torsion angles; correlations between e.s.d.'s in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell e.s.d.'s is used for estimating e.s.d.'s involving l.s. planes.

Refinement. Refinement of F2 against ALL reflections. The weighted R-factor wR and goodness of fit S are based on F2, conventional R-factors R are based on F, with F set to zero for negative F2. The threshold expression of F2 > σ(F2) is used only for calculating R-factors(gt) etc. and is not relevant to the choice of reflections for refinement. R-factors based on F2 are statistically about twice as large as those based on F, and R-factors based on ALL data will be even larger.

Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å2) top
xyzUiso*/UeqOcc. (<1)
O10.50718 (15)0.77955 (19)0.49310 (6)0.0560 (5)
C20.6021 (2)0.8610 (3)0.51636 (10)0.0490 (6)
C30.64762 (19)0.8378 (2)0.57594 (9)0.0440 (6)
C40.5962 (2)0.7392 (2)0.60580 (9)0.0456 (6)
C50.4958 (2)0.6556 (3)0.58143 (10)0.0483 (6)
C60.4409 (2)0.5503 (3)0.61028 (12)0.0588 (7)
H60.46840.53270.64850.071*
C70.3471 (2)0.4720 (3)0.58354 (14)0.0675 (8)
C80.3087 (2)0.5014 (3)0.52619 (15)0.0735 (9)
H80.24510.45000.50750.088*
C90.3612 (2)0.6034 (3)0.49630 (12)0.0655 (8)
H90.33400.62030.45800.079*
C100.4550 (2)0.6802 (3)0.52418 (10)0.0512 (6)
O110.64195 (16)0.9454 (2)0.48534 (7)0.0649 (5)
C120.75139 (19)0.9241 (3)0.60261 (9)0.0442 (6)
H120.73801.01540.58720.053*
C130.7374 (2)0.9318 (3)0.66888 (9)0.0447 (6)
C140.7351 (2)0.7859 (3)0.68848 (9)0.0491 (6)
O150.64021 (15)0.70590 (17)0.66098 (6)0.0538 (4)
C160.2891 (3)0.3579 (3)0.61477 (16)0.0964 (11)
H16A0.24610.29840.58730.145*0.50
H16B0.23100.39380.63990.145*0.50
H16C0.35330.30870.63700.145*0.50
H16D0.30750.36890.65550.145*0.50
H16E0.32260.27350.60290.145*0.50
H16F0.20030.35850.60580.145*0.50
C170.8802 (2)0.8790 (3)0.58752 (9)0.0493 (6)
C180.9676 (2)0.9762 (3)0.57662 (11)0.0684 (8)
H180.94681.06700.57890.082*
C191.0865 (3)0.9398 (4)0.56224 (12)0.0835 (10)
H191.14431.00640.55520.100*
C201.1177 (3)0.8095 (5)0.55848 (13)0.0848 (11)
H201.19710.78570.54900.102*
C211.0328 (3)0.7111 (4)0.56862 (13)0.0832 (10)
H211.05460.62070.56580.100*
C220.9136 (2)0.7461 (3)0.58313 (11)0.0633 (7)
H220.85630.67870.58990.076*
C230.8437 (2)1.0061 (3)0.70278 (10)0.0583 (7)
H23A0.84751.09730.68910.087*
H23B0.92120.96130.69770.087*
H23C0.82941.00670.74290.087*
N240.61573 (15)0.9977 (2)0.67699 (7)0.0444 (5)
C250.5853 (2)1.1225 (3)0.64515 (11)0.0613 (7)
H25A0.66051.17280.64120.092*
H25B0.52901.17560.66570.092*
H25C0.54671.10070.60760.092*
C260.5548 (2)0.9634 (3)0.72315 (10)0.0490 (6)
O270.59794 (16)0.8770 (2)0.75754 (7)0.0659 (5)
C280.4305 (2)1.0259 (3)0.73030 (10)0.0502 (6)
C290.3308 (2)1.0086 (3)0.68954 (12)0.0716 (8)
H290.34140.96150.65580.086*
C300.2151 (2)1.0614 (4)0.69901 (14)0.0843 (10)
H300.14771.04720.67190.101*
C310.1984 (3)1.1333 (4)0.74701 (14)0.0807 (9)
H310.12061.17000.75260.097*
C320.2965 (3)1.1516 (4)0.78720 (13)0.0806 (9)
H320.28561.20130.82030.097*
C330.4116 (2)1.0973 (3)0.77930 (11)0.0657 (8)
H330.47731.10910.80750.079*
O340.81109 (15)0.7302 (2)0.72014 (7)0.0637 (5)
C340.5741 (5)0.8527 (5)0.8947 (2)0.1397 (17)
H34A0.53250.78660.86980.210*
H34B0.52140.93050.89690.210*
H34C0.59150.81500.93250.210*
O350.6784 (3)0.8881 (7)0.87417 (13)0.208 (2)
H350.66750.89470.83900.312*
Atomic displacement parameters (Å2) top
U11U22U33U12U13U23
O10.0512 (9)0.0702 (12)0.0453 (9)0.0038 (9)−0.0040 (7)−0.0002 (9)
C20.0414 (12)0.0628 (17)0.0433 (12)0.0088 (12)0.0060 (10)−0.0008 (13)
C30.0388 (11)0.0561 (15)0.0378 (11)0.0061 (11)0.0068 (9)0.0007 (11)
C40.0450 (12)0.0535 (15)0.0383 (11)0.0068 (12)0.0044 (9)−0.0019 (11)
C50.0400 (12)0.0528 (15)0.0533 (14)0.0048 (11)0.0110 (10)−0.0051 (12)
C60.0509 (14)0.0589 (17)0.0680 (16)0.0005 (13)0.0135 (12)−0.0055 (14)
C70.0489 (15)0.0576 (18)0.099 (2)−0.0006 (14)0.0214 (15)−0.0127 (17)
C80.0433 (14)0.074 (2)0.102 (2)−0.0026 (15)0.0015 (15)−0.0291 (19)
C90.0494 (15)0.076 (2)0.0696 (17)0.0070 (15)−0.0045 (13)−0.0197 (16)
C100.0397 (12)0.0585 (17)0.0553 (14)0.0072 (12)0.0041 (11)−0.0069 (13)
O110.0640 (11)0.0864 (14)0.0446 (9)−0.0029 (10)0.0072 (8)0.0148 (10)
C120.0405 (12)0.0535 (15)0.0390 (11)0.0011 (11)0.0058 (9)0.0027 (11)
C130.0387 (12)0.0575 (16)0.0382 (11)0.0040 (11)0.0043 (9)−0.0002 (11)
C140.0447 (12)0.0655 (17)0.0373 (11)0.0055 (13)0.0060 (10)0.0006 (12)
O150.0619 (10)0.0573 (11)0.0417 (8)−0.0035 (9)0.0011 (7)0.0069 (8)
C160.076 (2)0.076 (2)0.141 (3)−0.0171 (18)0.029 (2)−0.003 (2)
C170.0421 (12)0.0686 (18)0.0378 (12)−0.0006 (13)0.0079 (10)−0.0013 (12)
C180.0584 (16)0.086 (2)0.0632 (16)−0.0079 (16)0.0182 (13)−0.0048 (16)
C190.0550 (17)0.129 (3)0.0698 (19)−0.015 (2)0.0224 (14)−0.009 (2)
C200.0500 (16)0.138 (3)0.0687 (19)0.014 (2)0.0170 (14)−0.014 (2)
C210.0671 (19)0.103 (3)0.081 (2)0.027 (2)0.0170 (16)−0.0044 (19)
C220.0546 (15)0.073 (2)0.0631 (16)0.0080 (15)0.0110 (12)−0.0009 (14)
C230.0463 (13)0.0765 (19)0.0518 (13)−0.0025 (14)0.0015 (11)−0.0070 (14)
N240.0397 (10)0.0542 (12)0.0397 (9)0.0036 (9)0.0068 (8)0.0038 (9)
C250.0583 (15)0.0686 (19)0.0586 (15)0.0116 (14)0.0158 (12)0.0123 (14)
C260.0455 (13)0.0591 (16)0.0427 (12)0.0009 (12)0.0049 (10)−0.0023 (12)
O270.0669 (11)0.0826 (14)0.0501 (10)0.0178 (11)0.0156 (8)0.0156 (10)
C280.0417 (12)0.0607 (16)0.0490 (13)−0.0030 (12)0.0091 (10)0.0024 (12)
C290.0502 (15)0.100 (2)0.0642 (16)−0.0008 (16)0.0047 (12)−0.0214 (17)
C300.0403 (15)0.128 (3)0.084 (2)−0.0023 (17)−0.0005 (14)−0.011 (2)
C310.0505 (16)0.113 (3)0.081 (2)0.0139 (17)0.0204 (15)−0.002 (2)
C320.0637 (18)0.107 (3)0.0732 (19)0.0124 (18)0.0176 (15)−0.0207 (18)
C330.0503 (14)0.091 (2)0.0564 (15)0.0016 (15)0.0070 (12)−0.0154 (15)
O340.0554 (10)0.0799 (13)0.0549 (10)0.0163 (10)−0.0014 (8)0.0164 (10)
C340.159 (4)0.135 (4)0.128 (4)0.009 (4)0.024 (3)0.029 (3)
O350.140 (3)0.398 (7)0.0822 (19)0.048 (4)−0.0186 (19)0.013 (3)
Geometric parameters (Å, º) top
O1—C101.369 (3)C18—H180.9300
O1—C21.376 (3)C19—C201.339 (5)
C2—O111.206 (3)C19—H190.9300
C2—C31.451 (3)C20—C211.369 (5)
C3—C41.344 (3)C20—H200.9300
C3—C121.498 (3)C21—C221.395 (4)
C4—O151.372 (3)C21—H210.9300
C4—C51.438 (3)C22—H220.9300
C5—C101.390 (3)C23—H23A0.9600
C5—C61.398 (3)C23—H23B0.9600
C6—C71.379 (4)C23—H23C0.9600
C6—H60.9300N24—C261.349 (3)
C7—C81.396 (4)N24—C251.464 (3)
C7—C161.507 (4)C25—H25A0.9600
C8—C91.375 (4)C25—H25B0.9600
C8—H80.9300C25—H25C0.9600
C9—C101.381 (4)C26—O271.236 (3)
C9—H90.9300C26—C281.493 (3)
C12—C171.524 (3)C28—C331.373 (3)
C12—C131.566 (3)C28—C291.382 (3)
C12—H120.9800C29—C301.383 (4)
C13—N241.488 (3)C29—H290.9300
C13—C141.516 (4)C30—C311.351 (4)
C13—C231.523 (3)C30—H300.9300
C14—O341.189 (3)C31—C321.362 (4)
C14—O151.403 (3)C31—H310.9300
C16—H16A0.9600C32—C331.374 (4)
C16—H16B0.9600C32—H320.9300
C16—H16C0.9600C33—H330.9300
C16—H16D0.9600C34—O351.302 (5)
C16—H16E0.9600C34—H34A0.9600
C16—H16F0.9600C34—H34B0.9600
C17—C221.371 (4)C34—H34C0.9600
C17—C181.382 (4)O35—H350.8200
C18—C191.395 (4)
C10—O1—C2122.43 (19)H16D—C16—H16F109.5
O11—C2—O1117.3 (2)H16E—C16—H16F109.5
O11—C2—C3125.1 (2)C22—C17—C18118.0 (2)
O1—C2—C3117.6 (2)C22—C17—C12123.1 (2)
C4—C3—C2119.4 (2)C18—C17—C12118.8 (2)
C4—C3—C12121.6 (2)C17—C18—C19120.9 (3)
C2—C3—C12119.0 (2)C17—C18—H18119.5
C3—C4—O15122.4 (2)C19—C18—H18119.5
C3—C4—C5122.8 (2)C20—C19—C18120.3 (3)
O15—C4—C5114.8 (2)C20—C19—H19119.9
C10—C5—C6118.7 (2)C18—C19—H19119.9
C10—C5—C4116.3 (2)C19—C20—C21120.1 (3)
C6—C5—C4124.9 (2)C19—C20—H20120.0
C7—C6—C5121.6 (3)C21—C20—H20120.0
C7—C6—H6119.2C20—C21—C22120.3 (3)
C5—C6—H6119.2C20—C21—H21119.9
C6—C7—C8117.5 (3)C22—C21—H21119.9
C6—C7—C16121.4 (3)C17—C22—C21120.5 (3)
C8—C7—C16121.2 (3)C17—C22—H22119.8
C9—C8—C7122.5 (3)C21—C22—H22119.8
C9—C8—H8118.8C13—C23—H23A109.5
C7—C8—H8118.8C13—C23—H23B109.5
C8—C9—C10118.8 (3)H23A—C23—H23B109.5
C8—C9—H9120.6C13—C23—H23C109.5
C10—C9—H9120.6H23A—C23—H23C109.5
O1—C10—C9117.6 (2)H23B—C23—H23C109.5
O1—C10—C5121.5 (2)C26—N24—C25121.0 (2)
C9—C10—C5120.9 (3)C26—N24—C13118.76 (19)
C3—C12—C17113.34 (19)C25—N24—C13117.86 (18)
C3—C12—C13107.90 (17)N24—C25—H25A109.5
C17—C12—C13113.96 (17)N24—C25—H25B109.5
C3—C12—H12107.1H25A—C25—H25B109.5
C17—C12—H12107.1N24—C25—H25C109.5
C13—C12—H12107.1H25A—C25—H25C109.5
N24—C13—C14110.10 (18)H25B—C25—H25C109.5
N24—C13—C23110.53 (19)O27—C26—N24120.7 (2)
C14—C13—C23109.6 (2)O27—C26—C28120.3 (2)
N24—C13—C12107.74 (16)N24—C26—C28118.9 (2)
C14—C13—C12104.82 (19)C33—C28—C29118.3 (2)
C23—C13—C12113.90 (18)C33—C28—C26120.2 (2)
O34—C14—O15117.1 (2)C29—C28—C26121.4 (2)
O34—C14—C13127.0 (2)C28—C29—C30119.9 (3)
O15—C14—C13115.49 (19)C28—C29—H29120.0
C4—O15—C14118.16 (18)C30—C29—H29120.0
C7—C16—H16A109.5C31—C30—C29121.0 (3)
C7—C16—H16B109.5C31—C30—H30119.5
H16A—C16—H16B109.5C29—C30—H30119.5
C7—C16—H16C109.5C30—C31—C32119.4 (3)
H16A—C16—H16C109.5C30—C31—H31120.3
H16B—C16—H16C109.5C32—C31—H31120.3
C7—C16—H16D109.5C31—C32—C33120.6 (3)
H16A—C16—H16D141.1C31—C32—H32119.7
H16B—C16—H16D56.3C33—C32—H32119.7
H16C—C16—H16D56.3C28—C33—C32120.7 (3)
C7—C16—H16E109.5C28—C33—H33119.6
H16A—C16—H16E56.3C32—C33—H33119.6
H16B—C16—H16E141.1O35—C34—H34A109.5
H16C—C16—H16E56.3O35—C34—H34B109.5
H16D—C16—H16E109.5H34A—C34—H34B109.5
C7—C16—H16F109.5O35—C34—H34C109.5
H16A—C16—H16F56.3H34A—C34—H34C109.5
H16B—C16—H16F56.3H34B—C34—H34C109.5
H16C—C16—H16F141.1C34—O35—H35109.5
C10—O1—C2—O11179.8 (2)N24—C13—C14—O1557.6 (2)
C10—O1—C2—C30.6 (3)C23—C13—C14—O15179.33 (17)
O11—C2—C3—C4−179.2 (2)C12—C13—C14—O15−58.1 (2)
O1—C2—C3—C4−0.1 (3)C3—C4—O15—C145.6 (3)
O11—C2—C3—C120.5 (3)C5—C4—O15—C14−177.71 (18)
O1—C2—C3—C12179.67 (19)O34—C14—O15—C4−144.9 (2)
C2—C3—C4—O15175.6 (2)C13—C14—O15—C428.2 (3)
C12—C3—C4—O15−4.2 (3)C3—C12—C17—C22−38.0 (3)
C2—C3—C4—C5−0.8 (3)C13—C12—C17—C2285.9 (3)
C12—C3—C4—C5179.5 (2)C3—C12—C17—C18140.8 (2)
C3—C4—C5—C101.1 (3)C13—C12—C17—C18−95.3 (3)
O15—C4—C5—C10−175.52 (19)C22—C17—C18—C19−0.7 (4)
C3—C4—C5—C6178.7 (2)C12—C17—C18—C19−179.5 (2)
O15—C4—C5—C62.0 (3)C17—C18—C19—C200.3 (5)
C10—C5—C6—C7−0.7 (4)C18—C19—C20—C210.1 (5)
C4—C5—C6—C7−178.2 (2)C19—C20—C21—C22−0.2 (5)
C5—C6—C7—C80.1 (4)C18—C17—C22—C210.6 (4)
C5—C6—C7—C16179.5 (2)C12—C17—C22—C21179.4 (2)
C6—C7—C8—C90.4 (4)C20—C21—C22—C17−0.1 (4)
C16—C7—C8—C9−178.9 (3)C14—C13—N24—C2635.9 (3)
C7—C8—C9—C10−0.4 (4)C23—C13—N24—C26−85.3 (3)
C2—O1—C10—C9−179.3 (2)C12—C13—N24—C26149.6 (2)
C2—O1—C10—C5−0.3 (3)C14—C13—N24—C25−161.6 (2)
C8—C9—C10—O1178.8 (2)C23—C13—N24—C2577.2 (2)
C8—C9—C10—C5−0.1 (4)C12—C13—N24—C25−47.8 (3)
C6—C5—C10—O1−178.3 (2)C25—N24—C26—O27−163.2 (2)
C4—C5—C10—O1−0.6 (3)C13—N24—C26—O27−1.3 (3)
C6—C5—C10—C90.7 (3)C25—N24—C26—C2820.1 (3)
C4—C5—C10—C9178.4 (2)C13—N24—C26—C28−177.9 (2)
C4—C3—C12—C1798.8 (2)O27—C26—C28—C3361.0 (4)
C2—C3—C12—C17−80.9 (3)N24—C26—C28—C33−122.4 (3)
C4—C3—C12—C13−28.3 (3)O27—C26—C28—C29−116.1 (3)
C2—C3—C12—C13151.9 (2)N24—C26—C28—C2960.5 (3)
C3—C12—C13—N24−62.3 (2)C33—C28—C29—C30−0.8 (4)
C17—C12—C13—N24170.9 (2)C26—C28—C29—C30176.3 (3)
C3—C12—C13—C1455.0 (2)C28—C29—C30—C311.9 (5)
C17—C12—C13—C14−71.8 (2)C29—C30—C31—C32−1.4 (5)
C3—C12—C13—C23174.7 (2)C30—C31—C32—C33−0.2 (5)
C17—C12—C13—C2347.9 (3)C29—C28—C33—C32−0.8 (4)
N24—C13—C14—O34−130.1 (2)C26—C28—C33—C32−177.9 (3)
C23—C13—C14—O34−8.3 (3)C31—C32—C33—C281.3 (5)
C12—C13—C14—O34114.3 (2)
Hydrogen-bond geometry (Å, º) top
D—H···AD—HH···AD···AD—H···A
O35—H35···O270.821.992.784 (3)163
C9—H9···O35i0.932.463.320 (4)153
C19—H19···O11ii0.932.603.403 (3)144
Symmetry codes: (i) x−1/2, −y+3/2, z−1/2; (ii) −x+2, −y+2, −z+1.

Experimental details

Crystal data
Chemical formulaC28H23NO5·CH4O
Mr485.52
Crystal system, space groupMonoclinic, P21/n
Temperature (K)298
a, b, c (Å)10.7435 (14), 9.9056 (17), 23.298 (3)
β (°) 94.817 (7)
V (Å3)2470.7 (6)
Z4
Radiation typeMo Kα
µ (mm−1)0.09
Crystal size (mm)0.58 × 0.38 × 0.36
Data collection
DiffractometerSiemens P4
Absorption correctionψ scan
(Kopfmann & Huber, 1968)
Tmin, Tmax0.870, 0.968
No. of measured, independent and
observed [I > 2σ(I)] reflections		9535, 4347, 2843
Rint0.036
(sin θ/λ)max (Å−1)0.595
Refinement
R[F2 > 2σ(F2)], wR(F2), S 0.049, 0.132, 1.01
No. of reflections4347
No. of parameters331
H-atom treatmentH-atom parameters constrained
Δρmax, Δρmin (e Å−3)0.18, −0.31

Computer programs: XSCANS (Bruker, 1999), SHELXTL (Sheldrick, 2008), SIR97 (Altomare et al., 1999), XPW (Siemens, 1996), PARST97 (Nardelli, 1995) and SHELXL97 (Sheldrick, 2008).

Selected geometric parameters (Å, º) top
O1—C101.369 (3)C14—O341.189 (3)
O1—C21.376 (3)C14—O151.403 (3)
C2—O111.206 (3)N24—C261.349 (3)
C2—C31.451 (3)N24—C251.464 (3)
C3—C41.344 (3)C26—O271.236 (3)
C3—C121.498 (3)C26—C281.493 (3)
C4—O151.372 (3)C28—C331.373 (3)
C4—C51.438 (3)C28—C291.382 (3)
C5—C101.390 (3)C29—C301.383 (4)
C12—C171.524 (3)C30—C311.351 (4)
C12—C131.566 (3)C31—C321.362 (4)
C13—N241.488 (3)C32—C331.374 (4)
C13—C141.516 (4)C34—O351.302 (5)
C13—C231.523 (3)
C10—O1—C2122.43 (19)C17—C12—C13113.96 (17)
O11—C2—O1117.3 (2)N24—C13—C14110.10 (18)
O11—C2—C3125.1 (2)N24—C13—C23110.53 (19)
O1—C2—C3117.6 (2)C14—C13—C23109.6 (2)
C4—C3—C2119.4 (2)N24—C13—C12107.74 (16)
C4—C3—C12121.6 (2)C14—C13—C12104.82 (19)
C2—C3—C12119.0 (2)C23—C13—C12113.90 (18)
C3—C4—O15122.4 (2)O34—C14—O15117.1 (2)
C3—C4—C5122.8 (2)O34—C14—C13127.0 (2)
O15—C4—C5114.8 (2)O15—C14—C13115.49 (19)
C10—C5—C6118.7 (2)C4—O15—C14118.16 (18)
C10—C5—C4116.3 (2)C26—N24—C25121.0 (2)
C6—C5—C4124.9 (2)C26—N24—C13118.76 (19)
O1—C10—C9117.6 (2)C25—N24—C13117.86 (18)
O1—C10—C5121.5 (2)O27—C26—N24120.7 (2)
C9—C10—C5120.9 (3)O27—C26—C28120.3 (2)
C3—C12—C17113.34 (19)N24—C26—C28118.9 (2)
C3—C12—C13107.90 (17)
Hydrogen-bond geometry (Å, º) top
D—H···AD—HH···AD···AD—H···A
O35—H35···O270.821.992.784 (3)163
C9—H9···O35i0.932.463.320 (4)153
C19—H19···O11ii0.932.603.403 (3)144
Symmetry codes: (i) x−1/2, −y+3/2, z−1/2; (ii) −x+2, −y+2, −z+1.
 

References

First citationAllen, F. H. (2002). Acta Cryst. B58, 380–388.  Web of Science CSD CrossRef CAS IUCr Journals Google Scholar
 First citationAltomare, A., Burla, M. C., Camalli, M., Cascarano, G. L., Giacovazzo, C., Guagliardi, A., Moliterni, A. G. G., Polidori, G. & Spagna, R. (1999). J. Appl. Cryst. 32, 115–119.  Web of Science CrossRef CAS IUCr Journals Google Scholar
 First citationBruker (1999). XSCANS. Release 2.31. Bruker AXS Inc., Madison, Wisconsin, USA.  Google Scholar
 First citationBruno, G., Nicoló, F., Rotondo, A., Foti, F., Risitano, F., Grassi, G. & Bilardo, C. (2001). Acta Cryst. C57, 493–494.  Web of Science CSD CrossRef CAS IUCr Journals Google Scholar
 First citationFrisch, M. J. et al. (1998). GAUSSIAN98. Gaussian, Inc., Pittsburgh, Pennsylvania, USA.  Google Scholar
 First citationGrassi, G., Cordaro, M., Bruno, G. & Nicolò, F. (2002). Helv. Chim. Acta, 85, 196–205.  Web of Science CSD CrossRef CAS Google Scholar
 First citationGrassi, G., Risitano, F., Foti, F., Cordaro, M., Bruno, G. & Nicolò, F. (2003). Chem. Commun. pp. 1868–1869.  Web of Science CSD CrossRef Google Scholar
 First citationHarborne, J. B. & Baxter, H. (1999). The Handbook of Natural Flavonoids. Chichester: Wiley.  Google Scholar
 First citationKokila, M. K., Puttaraja, Kulkarni, M. V. & Shivaprakash, N. C. (1996). Acta Cryst. C52, 2078–2081.  CSD CrossRef CAS Web of Science IUCr Journals Google Scholar
 First citationKopfmann, G. & Huber, R. (1968). Acta Cryst. A24, 348–351.  CrossRef IUCr Journals Web of Science Google Scholar
 First citationMurray, R. D. H., Medez, J. & Brown, S. A. (1982). In The Natural Coumarins: Occurence, Chemistry and Biochemistry. New York: Wiley.  Google Scholar
 First citationNardelli, M. (1995). J. Appl. Cryst. 28, 659.  CrossRef IUCr Journals Google Scholar
 First citationQabaja, G. E., Perchellet, M., Perchellet, J. P. & Jones, G. B. (2000). Tetrahedron Lett. 41, 3007–3010.  Web of Science CrossRef CAS Google Scholar
 First citationSheldrick, G. M. (2008). Acta Cryst. A64, 112–122.  Web of Science CrossRef CAS IUCr Journals Google Scholar
 First citationSiemens (1996). XPW. Siemens Analytical X-ray Instruments Inc., Madison, Wisconsin, USA.  Google Scholar
 First citationYu, X. L., Scheller, D., Rademacher, O. & Wolff, T. (2003). J. Org. Chem. 68, 7386–7399.  Web of Science CrossRef PubMed CAS Google Scholar

This is an open-access article distributed under the terms of the Creative Commons Attribution (CC-BY) Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are cited.

Journal logoCRYSTALLOGRAPHIC
COMMUNICATIONS
ISSN: 2056-9890
Volume 66| Part 12| December 2010| Page o3356
https://doi.org/10.1107/S1600536810043709
Follow Acta Cryst. E
Sign up for e-alerts
E-alerts
Follow Acta Cryst. on Twitter
Twitter
Follow us on facebook
Facebook
Sign up for RSS feeds
RSS