organic compounds
6-[(2E)-3,7-Dimethylocta-2,6-dien-1-yl]-5,7-dihydroxy-8-(2-methylbutanoyl)-4-phenyl-2H-chromen-2-one–6-[(2E)-3,7-dimethylocta-2,6-dien-1-yl]-5,7-dihydroxy-8-(3-methylbutanoyl)-4-phenyl-2H-chromen-2-one (1/1) from Mesua elegans1
aDepartment of Chemistry, University of Malaya, 50603 Kuala Lumpur, Malaysia, bFaculty of Applied Sciences, Universiti Teknologi MARA, 40450 Shah Alam, Malaysia, and cChemistry Department, Faculty of, Science, King Abdulaziz University, PO Box 80203 Jeddah, Saudi Arabia
*Correspondence e-mail: edward.tiekink@gmail.com
The title 30H34O5·C30H34O5, comprises a 1:1 mixture of two mostly superimposed molecules with the same chemical formula that differ in the nature of the substituent (2-methylbutanoyl or 3-methylbutanoyl) bound at the exocyclic ketone. The lactone ring is close to planar (r.m.s. deviation = 0.058 Å) and the phenyl ring is twisted out of this plane [dihedral angle = 60.08 (9)°]. The geranyl substituent is almost normal to benzene ring to which it is connected [C—C—Car—Car (ar = aromatic) torsion angle = −87.8 (2)°]. Intramolecular O—H⋯O and O—H⋯π interactions are formed. In the crystal, supramolecular chains are formed along the a axis owing to C—H⋯O contacts, with the lactone carbonyl atom accepting two such bonds.
CRelated literature
For the spectroscopic characterization of the title material, see: Verotta et al. (2004) and for its acetylcholinesterase (AChE) inhibitory properties, see: Awang et al. (2010).
Experimental
Crystal data
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Refinement
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Data collection: CrysAlis PRO (Agilent, 2011); cell CrysAlis PRO; data reduction: CrysAlis PRO; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 (Farrugia, 1997) and DIAMOND (Brandenburg, 2006); software used to prepare material for publication: publCIF (Westrip, 2010).
Supporting information
10.1107/S1600536812008628/hb6652sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536812008628/hb6652Isup2.hkl
Dried ground bark (1.5 kg) of Mesua elegans (Clusiaceae), collected from Sungai Badak Forest Reserve, Sintok, Kedah, Malaysia, was extracted with hexane (3 × 4 L, 48 h) at room temperature. The hexane was evaporated to give a yellow gum (120 g). A portion of the extract (10 g) was subjected to
over silica gel (230–400 mesh) and eluted with hexane:ethyl acetate (from 9.5 to 0) and ethyl acetate:methanol (5:5) to give six fractions. The first fraction was subjected to further silica gel and eluted with hexane:ethyl acetate (from 9.7 to 9.4) to produce two other sub-fractions. The was obtained from the second sub-fraction and recrystallized from its methanol solution as colourless prisms.Carbon-bound H-atoms were placed in calculated positions [C—H = 0.95 to 1.00 Å, Uiso(H) = 1.2 to 1.5Ueq(C)] and were included in the
in the riding model approximation. The hydroxy H-atoms were located in a difference Fourier map, and were refined with a distance restraint of O—H = 0.84±0.01 Å; their Uiso values were refined.The crystal is a
of two molecules having an identical chemical composition. One has an 2-methylbutanoyl substituent in the fused-ring whereas the other has the isomeric 3-methylbutanoyl substituent. As the occupancy refined to a nearly 1:1 ratio, the occupancy of each substituent was set as exactly 0.5.The pairs of Cbenzene–Cketone, Cketone–Cmethine/methylene and C—O distances were restrained to within 0.01 Å of each other, and the anisotropic displacement parameters of the primed atoms were set to those of the unprimed ones. The four-atom unit was restrained to be nearly planar. For the atoms comprising the butyl fragment, 1,2-related C–C distances were restrained to 1.540±0.005 and 1,3-related ones to 2.51±0.01 Å, and the anisotropic displacement parameters were restrained to be nearly isotropic.
The structure of the title
(I), previously isolated from Mesua ferrea, was elucidated by spectroscopic measurements (Verotta et al., 2004). Both components possess the 4-phenylcoumarin skeleton, which is substituted by two hydroxyl group at C-5 and C-7, and a geranyl group at C-6. The difference between the two compounds is the substituent at position C-8; the first is substituted with 2-methylbutanoyl and the second is substituted with the 3-methyl- butanoyl group. The title have been evaluated as multi-drug resistant anti-bacterials (Verotta et al., 2004) and for their acetylcholinesterase (AChE) inhibitory properties (Awang et al., 2010). Herein, a crystallographic analysis is described.The molecular components of the π interaction with the phenyl ring, Table 1.
(I) are shown in Figs 1 and 2. The r.m.s. deviation for the fitted atoms of the lactone ring = 0.058 Å with maximum deviations of 0.043 (2) Å for the C3 atoms and -0.058 (2) Å for the C4 atom. The phenyl ring is twisted out of this plane, forming a dihedral angle of 60.08 (9)°. The excocyclic carbonyl atom is co-planar with the benzene ring to which it is connected with the C7—C8—C26—O5 torsion angle being 2.2 (10)°; the equivalent torsion angle for the molecule with the 3-methylbutanoyl is 9.9 (9)°. The co-planarity is readily accounted for in terms of intramolecular O—H···O hydrogen bonds. The geranyl group projects almost normal to the plane through the benzene ring with the C5—C6—C16—C17 torsion angle being -87.8 (2)°. The second hydroxyl group forms an intramolecular O—H···In the crystal, the lactone-carbonyl atom participates in two C—H···O interactions, Table 1, to link molecules into a supramolecular chain along the a axis, Fig. 3.
For the spectroscopic characterization of the title material, see: Verotta et al. (2004) and for its acetylcholinesterase (AChE) inhibitory properties, see: Awang et al. (2010).
Data collection: CrysAlis PRO (Agilent, 2011); cell
CrysAlis PRO (Agilent, 2011); data reduction: CrysAlis PRO (Agilent, 2011); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 (Farrugia, 1997) and DIAMOND (Brandenburg, 2006); software used to prepare material for publication: publCIF (Westrip, 2010).Fig. 1. The molecular structure of the first (2-methyl butanoyl) component of (I) showing displacement ellipsoids at the 50% probability level. | |
Fig. 2. The molecular structure of the second (3-methyl butanoyl) component of (I) showing displacement ellipsoids at the 50% probability level. | |
Fig. 3. A view in projection down the a axis of the unit-cell contents of (I). The C—H···O interactions are shown as orange dashed lines. |
C30H34O5·C30H34O5 | Z = 1 |
Mr = 949.14 | F(000) = 508 |
Triclinic, P1 | Dx = 1.231 Mg m−3 |
Hall symbol: -P 1 | Cu Kα radiation, λ = 1.54184 Å |
a = 5.9426 (2) Å | Cell parameters from 8956 reflections |
b = 13.4688 (5) Å | θ = 2.8–76.3° |
c = 16.3275 (6) Å | µ = 0.66 mm−1 |
α = 91.955 (3)° | T = 100 K |
β = 99.515 (3)° | Prism, colourless |
γ = 95.834 (3)° | 0.30 × 0.15 × 0.05 mm |
V = 1280.47 (8) Å3 |
Agilent SuperNova Dual diffractometer with an Atlas detector | 5330 independent reflections |
Radiation source: SuperNova (Cu) X-ray Source | 4528 reflections with I > 2σ(I) |
Mirror monochromator | Rint = 0.045 |
Detector resolution: 10.4041 pixels mm-1 | θmax = 76.5°, θmin = 2.8° |
ω scan | h = −7→7 |
Absorption correction: multi-scan (CrysAlis PRO; Agilent, 2011) | k = −16→16 |
Tmin = 0.826, Tmax = 0.968 | l = −20→20 |
25960 measured reflections |
Refinement on F2 | Primary atom site location: structure-invariant direct methods |
Least-squares matrix: full | Secondary atom site location: difference Fourier map |
R[F2 > 2σ(F2)] = 0.066 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.208 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.01 | w = 1/[σ2(Fo2) + (0.1357P)2 + 0.5208P] where P = (Fo2 + 2Fc2)/3 |
5330 reflections | (Δ/σ)max = 0.001 |
363 parameters | Δρmax = 0.57 e Å−3 |
54 restraints | Δρmin = −0.53 e Å−3 |
C30H34O5·C30H34O5 | γ = 95.834 (3)° |
Mr = 949.14 | V = 1280.47 (8) Å3 |
Triclinic, P1 | Z = 1 |
a = 5.9426 (2) Å | Cu Kα radiation |
b = 13.4688 (5) Å | µ = 0.66 mm−1 |
c = 16.3275 (6) Å | T = 100 K |
α = 91.955 (3)° | 0.30 × 0.15 × 0.05 mm |
β = 99.515 (3)° |
Agilent SuperNova Dual diffractometer with an Atlas detector | 5330 independent reflections |
Absorption correction: multi-scan (CrysAlis PRO; Agilent, 2011) | 4528 reflections with I > 2σ(I) |
Tmin = 0.826, Tmax = 0.968 | Rint = 0.045 |
25960 measured reflections |
R[F2 > 2σ(F2)] = 0.066 | 54 restraints |
wR(F2) = 0.208 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.01 | Δρmax = 0.57 e Å−3 |
5330 reflections | Δρmin = −0.53 e Å−3 |
363 parameters |
x | y | z | Uiso*/Ueq | Occ. (<1) | |
O1 | 0.9303 (2) | 0.47777 (9) | 0.36863 (8) | 0.0331 (3) | |
O2 | 1.2727 (2) | 0.55978 (10) | 0.41312 (9) | 0.0390 (3) | |
O3 | 0.7244 (2) | 0.13093 (9) | 0.41205 (9) | 0.0399 (4) | |
H3o | 0.851 (3) | 0.138 (2) | 0.4450 (14) | 0.052 (7)* | |
O4 | 0.1977 (2) | 0.30693 (11) | 0.25255 (9) | 0.0415 (4) | |
H4o | 0.198 (6) | 0.3641 (14) | 0.232 (2) | 0.080 (10)* | |
O5 | 0.284 (4) | 0.473 (2) | 0.218 (3) | 0.046 (2) | 0.50 |
O5' | 0.308 (4) | 0.489 (2) | 0.223 (3) | 0.046 (2) | 0.50 |
C1 | 1.1476 (3) | 0.48355 (13) | 0.41647 (12) | 0.0329 (4) | |
C2 | 1.1949 (3) | 0.40121 (13) | 0.46801 (11) | 0.0325 (4) | |
H2 | 1.3363 | 0.4046 | 0.5055 | 0.039* | |
C3 | 1.0417 (3) | 0.31880 (13) | 0.46420 (11) | 0.0311 (4) | |
C4 | 0.8304 (3) | 0.30996 (13) | 0.40438 (11) | 0.0308 (4) | |
C5 | 0.6749 (3) | 0.22155 (13) | 0.38407 (11) | 0.0326 (4) | |
C6 | 0.4647 (3) | 0.22110 (13) | 0.33394 (11) | 0.0340 (4) | |
C7 | 0.4069 (3) | 0.31019 (14) | 0.29808 (11) | 0.0344 (4) | |
C8 | 0.5641 (3) | 0.39885 (14) | 0.30749 (11) | 0.0344 (4) | |
C9 | 0.7747 (3) | 0.39437 (13) | 0.36031 (11) | 0.0314 (4) | |
C10 | 1.0886 (3) | 0.24091 (13) | 0.52593 (11) | 0.0330 (4) | |
C11 | 1.2800 (4) | 0.18927 (16) | 0.52804 (13) | 0.0422 (5) | |
H11 | 1.3861 | 0.2055 | 0.4917 | 0.051* | |
C12 | 1.3170 (4) | 0.11372 (18) | 0.58338 (15) | 0.0508 (6) | |
H12 | 1.4461 | 0.0774 | 0.5836 | 0.061* | |
C13 | 1.1665 (4) | 0.09147 (16) | 0.63781 (14) | 0.0475 (5) | |
H13 | 1.1912 | 0.0395 | 0.6751 | 0.057* | |
C14 | 0.9803 (4) | 0.14473 (15) | 0.63803 (13) | 0.0439 (5) | |
H14 | 0.8794 | 0.1305 | 0.6766 | 0.053* | |
C15 | 0.9392 (4) | 0.21920 (14) | 0.58222 (13) | 0.0390 (4) | |
H15 | 0.8098 | 0.2552 | 0.5824 | 0.047* | |
C16 | 0.3045 (3) | 0.12556 (14) | 0.31303 (12) | 0.0372 (4) | |
H16A | 0.3228 | 0.0817 | 0.3606 | 0.045* | |
H16B | 0.1435 | 0.1414 | 0.3026 | 0.045* | |
C17 | 0.3576 (3) | 0.07200 (14) | 0.23678 (13) | 0.0377 (4) | |
H17 | 0.5157 | 0.0679 | 0.2355 | 0.045* | |
C18 | 0.2122 (3) | 0.03001 (13) | 0.17137 (12) | 0.0336 (4) | |
C19 | −0.0431 (3) | 0.02650 (17) | 0.16256 (13) | 0.0427 (5) | |
H19A | −0.0823 | 0.0682 | 0.2074 | 0.064* | |
H19B | −0.1095 | −0.0426 | 0.1658 | 0.064* | |
H19C | −0.1049 | 0.0516 | 0.1087 | 0.064* | |
C20 | 0.2995 (3) | −0.01785 (14) | 0.09938 (12) | 0.0378 (4) | |
H20A | 0.4624 | 0.0082 | 0.1015 | 0.045* | |
H20B | 0.2117 | 0.0022 | 0.0468 | 0.045* | |
C21 | 0.2809 (5) | −0.13182 (16) | 0.09853 (15) | 0.0547 (6) | |
H21A | 0.3737 | −0.1526 | 0.1499 | 0.066* | |
H21B | 0.1191 | −0.1584 | 0.0979 | 0.066* | |
C22 | 0.3627 (5) | −0.17516 (16) | 0.02434 (15) | 0.0501 (5) | |
H22 | 0.5179 | −0.1552 | 0.0197 | 0.060* | |
C23 | 0.2449 (4) | −0.23810 (17) | −0.03575 (14) | 0.0501 (5) | |
C24 | 0.3472 (5) | −0.27142 (19) | −0.10876 (16) | 0.0590 (6) | |
H24A | 0.5074 | −0.2421 | −0.1023 | 0.089* | |
H24B | 0.2603 | −0.2494 | −0.1600 | 0.089* | |
H24C | 0.3409 | −0.3445 | −0.1116 | 0.089* | |
C25 | 0.0024 (6) | −0.2785 (4) | −0.0393 (2) | 0.0989 (14) | |
H25A | −0.0533 | −0.2536 | 0.0100 | 0.148* | |
H25B | −0.0096 | −0.3517 | −0.0407 | 0.148* | |
H25C | −0.0907 | −0.2570 | −0.0895 | 0.148* | |
C26 | 0.480 (2) | 0.4832 (7) | 0.2594 (10) | 0.0424 (9) | 0.50 |
C27 | 0.6207 (16) | 0.5821 (7) | 0.2569 (5) | 0.0590 (13) | 0.50 |
H27 | 0.7212 | 0.5942 | 0.3125 | 0.071* | 0.50 |
C26' | 0.506 (2) | 0.4880 (7) | 0.2608 (9) | 0.0424 (9) | 0.50 |
C27' | 0.6741 (18) | 0.5785 (8) | 0.2554 (6) | 0.0590 (13) | 0.50 |
H27A | 0.8304 | 0.5578 | 0.2586 | 0.071* | 0.50 |
H27B | 0.6755 | 0.6263 | 0.3029 | 0.071* | 0.50 |
C28 | 0.7818 (6) | 0.5736 (2) | 0.1937 (2) | 0.0311 (7) | 0.50 |
H28A | 0.8578 | 0.5118 | 0.2025 | 0.037* | 0.50 |
H28B | 0.6900 | 0.5676 | 0.1370 | 0.037* | 0.50 |
C29 | 0.9641 (7) | 0.6620 (3) | 0.1995 (3) | 0.0458 (9) | 0.50 |
H29A | 1.0600 | 0.6530 | 0.1570 | 0.069* | 0.50 |
H29B | 1.0598 | 0.6668 | 0.2547 | 0.069* | 0.50 |
H29C | 0.8902 | 0.7235 | 0.1905 | 0.069* | 0.50 |
C30 | 0.4816 (13) | 0.6723 (6) | 0.2447 (5) | 0.117 (3) | 0.50 |
H30A | 0.3892 | 0.6764 | 0.2889 | 0.176* | 0.50 |
H30B | 0.3803 | 0.6642 | 0.1905 | 0.176* | 0.50 |
H30C | 0.5868 | 0.7336 | 0.2469 | 0.176* | 0.50 |
C28' | 0.6076 (11) | 0.6297 (4) | 0.1732 (3) | 0.0737 (16) | 0.50 |
H28' | 0.4480 | 0.6489 | 0.1690 | 0.088* | 0.50 |
C29' | 0.7783 (13) | 0.7238 (4) | 0.1787 (4) | 0.089 (2) | 0.50 |
H29D | 0.7365 | 0.7635 | 0.1304 | 0.133* | 0.50 |
H29E | 0.9333 | 0.7046 | 0.1794 | 0.133* | 0.50 |
H29F | 0.7744 | 0.7635 | 0.2298 | 0.133* | 0.50 |
C30' | 0.6254 (7) | 0.5651 (3) | 0.0980 (2) | 0.0362 (8) | 0.50 |
H30D | 0.5155 | 0.5051 | 0.0944 | 0.054* | 0.50 |
H30E | 0.7814 | 0.5457 | 0.1029 | 0.054* | 0.50 |
H30F | 0.5910 | 0.6025 | 0.0479 | 0.054* | 0.50 |
U11 | U22 | U33 | U12 | U13 | U23 | |
O1 | 0.0368 (7) | 0.0244 (6) | 0.0359 (7) | −0.0024 (5) | 0.0040 (5) | −0.0023 (5) |
O2 | 0.0393 (7) | 0.0253 (6) | 0.0494 (8) | −0.0036 (5) | 0.0038 (6) | −0.0011 (5) |
O3 | 0.0433 (8) | 0.0231 (6) | 0.0500 (8) | −0.0009 (5) | 0.0025 (6) | −0.0037 (5) |
O4 | 0.0383 (7) | 0.0393 (8) | 0.0431 (8) | −0.0025 (6) | 0.0004 (6) | −0.0012 (6) |
O5 | 0.049 (4) | 0.029 (7) | 0.051 (4) | −0.010 (4) | −0.012 (3) | 0.001 (6) |
O5' | 0.049 (4) | 0.029 (7) | 0.051 (4) | −0.010 (4) | −0.012 (3) | 0.001 (6) |
C1 | 0.0351 (9) | 0.0258 (8) | 0.0366 (9) | −0.0003 (7) | 0.0062 (7) | −0.0049 (7) |
C2 | 0.0335 (9) | 0.0274 (9) | 0.0351 (9) | −0.0004 (7) | 0.0045 (7) | −0.0024 (7) |
C3 | 0.0353 (9) | 0.0255 (8) | 0.0329 (9) | 0.0016 (7) | 0.0089 (7) | −0.0044 (6) |
C4 | 0.0338 (9) | 0.0259 (8) | 0.0323 (8) | −0.0013 (7) | 0.0084 (7) | −0.0039 (6) |
C5 | 0.0381 (9) | 0.0248 (8) | 0.0351 (9) | 0.0001 (7) | 0.0098 (7) | −0.0042 (7) |
C6 | 0.0366 (9) | 0.0285 (9) | 0.0359 (9) | −0.0041 (7) | 0.0089 (7) | −0.0066 (7) |
C7 | 0.0364 (9) | 0.0337 (9) | 0.0317 (9) | −0.0013 (7) | 0.0061 (7) | −0.0055 (7) |
C8 | 0.0406 (10) | 0.0302 (9) | 0.0306 (8) | −0.0019 (7) | 0.0056 (7) | −0.0032 (7) |
C9 | 0.0355 (9) | 0.0263 (8) | 0.0315 (8) | −0.0027 (7) | 0.0083 (7) | −0.0054 (6) |
C10 | 0.0386 (9) | 0.0248 (8) | 0.0338 (9) | −0.0015 (7) | 0.0052 (7) | −0.0029 (7) |
C11 | 0.0449 (11) | 0.0420 (11) | 0.0431 (11) | 0.0092 (9) | 0.0131 (9) | 0.0075 (8) |
C12 | 0.0566 (13) | 0.0470 (12) | 0.0535 (13) | 0.0172 (10) | 0.0144 (10) | 0.0115 (10) |
C13 | 0.0650 (14) | 0.0336 (10) | 0.0455 (11) | 0.0064 (9) | 0.0128 (10) | 0.0069 (8) |
C14 | 0.0588 (13) | 0.0320 (10) | 0.0441 (11) | 0.0018 (9) | 0.0198 (9) | 0.0035 (8) |
C15 | 0.0453 (11) | 0.0293 (9) | 0.0441 (10) | 0.0029 (8) | 0.0137 (8) | −0.0001 (7) |
C16 | 0.0371 (9) | 0.0306 (9) | 0.0415 (10) | −0.0047 (7) | 0.0067 (8) | −0.0072 (7) |
C17 | 0.0322 (9) | 0.0322 (9) | 0.0470 (11) | 0.0008 (7) | 0.0055 (8) | −0.0077 (8) |
C18 | 0.0356 (9) | 0.0264 (8) | 0.0379 (9) | −0.0008 (7) | 0.0060 (7) | −0.0002 (7) |
C19 | 0.0368 (10) | 0.0494 (12) | 0.0400 (10) | −0.0012 (8) | 0.0056 (8) | −0.0044 (8) |
C20 | 0.0386 (10) | 0.0322 (9) | 0.0409 (10) | −0.0008 (7) | 0.0064 (8) | −0.0050 (7) |
C21 | 0.0848 (18) | 0.0338 (11) | 0.0472 (12) | 0.0082 (11) | 0.0157 (12) | −0.0017 (9) |
C22 | 0.0640 (14) | 0.0358 (11) | 0.0521 (13) | 0.0076 (10) | 0.0146 (11) | −0.0051 (9) |
C23 | 0.0633 (14) | 0.0430 (11) | 0.0439 (11) | 0.0074 (10) | 0.0083 (10) | −0.0009 (9) |
C24 | 0.0779 (17) | 0.0476 (13) | 0.0526 (13) | 0.0122 (12) | 0.0136 (12) | −0.0113 (10) |
C25 | 0.084 (2) | 0.146 (4) | 0.0572 (17) | −0.037 (2) | 0.0231 (16) | −0.030 (2) |
C26 | 0.048 (3) | 0.0361 (12) | 0.0364 (11) | −0.0067 (14) | −0.0059 (15) | 0.0013 (10) |
C27 | 0.051 (4) | 0.0474 (15) | 0.0629 (16) | −0.020 (2) | −0.0257 (19) | 0.0194 (12) |
C26' | 0.048 (3) | 0.0361 (12) | 0.0364 (11) | −0.0067 (14) | −0.0059 (15) | 0.0013 (10) |
C27' | 0.051 (4) | 0.0474 (15) | 0.0629 (16) | −0.020 (2) | −0.0257 (19) | 0.0194 (12) |
C28 | 0.0366 (17) | 0.0258 (16) | 0.0301 (16) | 0.0024 (13) | 0.0019 (13) | 0.0110 (12) |
C29 | 0.050 (2) | 0.0336 (19) | 0.054 (2) | −0.0012 (17) | 0.0135 (19) | 0.0053 (17) |
C30 | 0.115 (6) | 0.101 (5) | 0.114 (6) | −0.012 (5) | −0.033 (5) | 0.032 (5) |
C28' | 0.078 (4) | 0.064 (3) | 0.073 (4) | −0.001 (3) | −0.001 (3) | 0.005 (3) |
C29' | 0.101 (5) | 0.068 (4) | 0.089 (4) | −0.005 (3) | −0.004 (4) | 0.017 (3) |
C30' | 0.051 (2) | 0.0264 (16) | 0.0316 (17) | −0.0002 (15) | 0.0093 (15) | 0.0057 (13) |
O1—C9 | 1.368 (2) | C19—H19C | 0.9800 |
O1—C1 | 1.388 (2) | C20—C21 | 1.527 (3) |
O2—C1 | 1.213 (2) | C20—H20A | 0.9900 |
O3—C5 | 1.361 (2) | C20—H20B | 0.9900 |
O3—H3o | 0.844 (10) | C21—C22 | 1.499 (3) |
O4—C7 | 1.335 (2) | C21—H21A | 0.9900 |
O4—H4o | 0.853 (10) | C21—H21B | 0.9900 |
O5—C26 | 1.240 (6) | C22—C23 | 1.329 (3) |
O5'—C26' | 1.238 (6) | C22—H22 | 0.9500 |
C1—C2 | 1.437 (3) | C23—C25 | 1.479 (4) |
C2—C3 | 1.355 (2) | C23—C24 | 1.500 (3) |
C2—H2 | 0.9500 | C24—H24A | 0.9800 |
C3—C4 | 1.450 (3) | C24—H24B | 0.9800 |
C3—C10 | 1.494 (2) | C24—H24C | 0.9800 |
C4—C9 | 1.405 (3) | C25—H25A | 0.9800 |
C4—C5 | 1.425 (2) | C25—H25B | 0.9800 |
C5—C6 | 1.375 (3) | C25—H25C | 0.9800 |
C6—C7 | 1.402 (3) | C26—C27 | 1.504 (6) |
C6—C16 | 1.514 (2) | C27—C28 | 1.528 (4) |
C7—C8 | 1.427 (3) | C27—C30 | 1.538 (5) |
C8—C9 | 1.405 (3) | C27—H27 | 1.0000 |
C8—C26 | 1.483 (6) | C26'—C27' | 1.510 (6) |
C8—C26' | 1.484 (6) | C27'—C28' | 1.541 (11) |
C10—C11 | 1.389 (3) | C27'—H27A | 0.9900 |
C10—C15 | 1.398 (3) | C27'—H27B | 0.9900 |
C11—C12 | 1.394 (3) | C28—C29 | 1.516 (4) |
C11—H11 | 0.9500 | C28—H28A | 0.9900 |
C12—C13 | 1.380 (3) | C28—H28B | 0.9900 |
C12—H12 | 0.9500 | C29—H29A | 0.9800 |
C13—C14 | 1.379 (3) | C29—H29B | 0.9800 |
C13—H13 | 0.9500 | C29—H29C | 0.9800 |
C14—C15 | 1.391 (3) | C30—H30A | 0.9800 |
C14—H14 | 0.9500 | C30—H30B | 0.9800 |
C15—H15 | 0.9500 | C30—H30C | 0.9800 |
C16—C17 | 1.511 (3) | C28'—C30' | 1.505 (4) |
C16—H16A | 0.9900 | C28'—C29' | 1.531 (4) |
C16—H16B | 0.9900 | C28'—H28' | 1.0000 |
C17—C18 | 1.327 (3) | C29'—H29D | 0.9800 |
C17—H17 | 0.9500 | C29'—H29E | 0.9800 |
C18—C19 | 1.496 (3) | C29'—H29F | 0.9800 |
C18—C20 | 1.511 (3) | C30'—H30D | 0.9800 |
C19—H19A | 0.9800 | C30'—H30E | 0.9800 |
C19—H19B | 0.9800 | C30'—H30F | 0.9800 |
C9—O1—C1 | 123.73 (14) | C20—C21—H21A | 109.3 |
C5—O3—H3o | 108.8 (19) | C22—C21—H21B | 109.3 |
C7—O4—H4o | 103 (2) | C20—C21—H21B | 109.3 |
O2—C1—O1 | 116.26 (17) | H21A—C21—H21B | 108.0 |
O2—C1—C2 | 127.17 (18) | C23—C22—C21 | 128.0 (2) |
O1—C1—C2 | 116.46 (15) | C23—C22—H22 | 116.0 |
C3—C2—C1 | 121.27 (17) | C21—C22—H22 | 116.0 |
C3—C2—H2 | 119.4 | C22—C23—C25 | 124.1 (2) |
C1—C2—H2 | 119.4 | C22—C23—C24 | 122.0 (2) |
C2—C3—C4 | 120.15 (17) | C25—C23—C24 | 113.8 (2) |
C2—C3—C10 | 118.72 (17) | C23—C24—H24A | 109.5 |
C4—C3—C10 | 121.03 (15) | C23—C24—H24B | 109.5 |
C9—C4—C5 | 116.29 (17) | H24A—C24—H24B | 109.5 |
C9—C4—C3 | 118.02 (16) | C23—C24—H24C | 109.5 |
C5—C4—C3 | 125.66 (17) | H24A—C24—H24C | 109.5 |
O3—C5—C6 | 114.94 (16) | H24B—C24—H24C | 109.5 |
O3—C5—C4 | 122.49 (17) | C23—C25—H25A | 109.5 |
C6—C5—C4 | 122.57 (17) | C23—C25—H25B | 109.5 |
C5—C6—C7 | 118.48 (16) | H25A—C25—H25B | 109.5 |
C5—C6—C16 | 121.17 (17) | C23—C25—H25C | 109.5 |
C7—C6—C16 | 120.24 (17) | H25A—C25—H25C | 109.5 |
O4—C7—C6 | 116.21 (16) | H25B—C25—H25C | 109.5 |
O4—C7—C8 | 121.54 (17) | O5—C26—C8 | 119.2 (19) |
C6—C7—C8 | 122.22 (17) | O5—C26—C27 | 116.9 (16) |
C9—C8—C7 | 116.14 (17) | C8—C26—C27 | 123.9 (8) |
C9—C8—C26 | 129.2 (6) | C26—C27—C28 | 109.4 (9) |
C7—C8—C26 | 114.7 (6) | C26—C27—C30 | 115.0 (7) |
C9—C8—C26' | 123.4 (6) | C28—C27—C30 | 113.0 (5) |
C7—C8—C26' | 120.5 (6) | C26—C27—H27 | 106.2 |
O1—C9—C8 | 117.12 (16) | C28—C27—H27 | 106.2 |
O1—C9—C4 | 119.40 (16) | C30—C27—H27 | 106.2 |
C8—C9—C4 | 123.48 (16) | O5'—C26'—C8 | 118.4 (19) |
C11—C10—C15 | 119.28 (18) | O5'—C26'—C27' | 117.3 (17) |
C11—C10—C3 | 120.61 (17) | C8—C26'—C27' | 124.3 (9) |
C15—C10—C3 | 120.11 (17) | C26'—C27'—C28' | 110.6 (7) |
C10—C11—C12 | 120.20 (19) | C26'—C27'—H27A | 109.5 |
C10—C11—H11 | 119.9 | C28'—C27'—H27A | 109.5 |
C12—C11—H11 | 119.9 | C26'—C27'—H27B | 109.5 |
C13—C12—C11 | 120.2 (2) | C28'—C27'—H27B | 109.5 |
C13—C12—H12 | 119.9 | H27A—C27'—H27B | 108.1 |
C11—C12—H12 | 119.9 | C29—C28—C27 | 113.2 (5) |
C14—C13—C12 | 120.0 (2) | C29—C28—H28A | 108.9 |
C14—C13—H13 | 120.0 | C27—C28—H28A | 108.9 |
C12—C13—H13 | 120.0 | C29—C28—H28B | 108.9 |
C13—C14—C15 | 120.48 (19) | C27—C28—H28B | 108.9 |
C13—C14—H14 | 119.8 | H28A—C28—H28B | 107.8 |
C15—C14—H14 | 119.8 | C28—C29—H29A | 109.5 |
C14—C15—C10 | 119.84 (19) | C28—C29—H29B | 109.5 |
C14—C15—H15 | 120.1 | H29A—C29—H29B | 109.5 |
C10—C15—H15 | 120.1 | C28—C29—H29C | 109.5 |
C17—C16—C6 | 110.01 (16) | H29A—C29—H29C | 109.5 |
C17—C16—H16A | 109.7 | H29B—C29—H29C | 109.5 |
C6—C16—H16A | 109.7 | C27—C30—H30A | 109.5 |
C17—C16—H16B | 109.7 | C27—C30—H30B | 109.5 |
C6—C16—H16B | 109.7 | H30A—C30—H30B | 109.5 |
H16A—C16—H16B | 108.2 | C27—C30—H30C | 109.5 |
C18—C17—C16 | 128.44 (18) | H30A—C30—H30C | 109.5 |
C18—C17—H17 | 115.8 | H30B—C30—H30C | 109.5 |
C16—C17—H17 | 115.8 | C30'—C28'—C29' | 109.5 (4) |
C17—C18—C19 | 123.89 (18) | C30'—C28'—C27' | 112.7 (6) |
C17—C18—C20 | 120.64 (18) | C29'—C28'—C27' | 105.2 (7) |
C19—C18—C20 | 115.46 (16) | C30'—C28'—H28' | 109.8 |
C18—C19—H19A | 109.5 | C29'—C28'—H28' | 109.8 |
C18—C19—H19B | 109.5 | C27'—C28'—H28' | 109.8 |
H19A—C19—H19B | 109.5 | C28'—C29'—H29D | 109.5 |
C18—C19—H19C | 109.5 | C28'—C29'—H29E | 109.5 |
H19A—C19—H19C | 109.5 | H29D—C29'—H29E | 109.5 |
H19B—C19—H19C | 109.5 | C28'—C29'—H29F | 109.5 |
C18—C20—C21 | 114.04 (17) | H29D—C29'—H29F | 109.5 |
C18—C20—H20A | 108.7 | H29E—C29'—H29F | 109.5 |
C21—C20—H20A | 108.7 | C28'—C30'—H30D | 109.5 |
C18—C20—H20B | 108.7 | C28'—C30'—H30E | 109.5 |
C21—C20—H20B | 108.7 | H30D—C30'—H30E | 109.5 |
H20A—C20—H20B | 107.6 | C28'—C30'—H30F | 109.5 |
C22—C21—C20 | 111.63 (19) | H30D—C30'—H30F | 109.5 |
C22—C21—H21A | 109.3 | H30E—C30'—H30F | 109.5 |
C9—O1—C1—O2 | 174.82 (16) | C4—C3—C10—C15 | −59.2 (2) |
C9—O1—C1—C2 | −8.6 (2) | C15—C10—C11—C12 | 2.7 (3) |
O2—C1—C2—C3 | −178.28 (18) | C3—C10—C11—C12 | −177.2 (2) |
O1—C1—C2—C3 | 5.6 (3) | C10—C11—C12—C13 | −1.6 (4) |
C1—C2—C3—C4 | 3.2 (3) | C11—C12—C13—C14 | −0.6 (4) |
C1—C2—C3—C10 | −173.11 (16) | C12—C13—C14—C15 | 1.7 (3) |
C2—C3—C4—C9 | −9.5 (3) | C13—C14—C15—C10 | −0.6 (3) |
C10—C3—C4—C9 | 166.80 (16) | C11—C10—C15—C14 | −1.6 (3) |
C2—C3—C4—C5 | 168.59 (17) | C3—C10—C15—C14 | 178.26 (18) |
C10—C3—C4—C5 | −15.1 (3) | C5—C6—C16—C17 | −87.8 (2) |
C9—C4—C5—O3 | 169.56 (16) | C7—C6—C16—C17 | 88.2 (2) |
C3—C4—C5—O3 | −8.5 (3) | C6—C16—C17—C18 | −135.2 (2) |
C9—C4—C5—C6 | −9.6 (3) | C16—C17—C18—C19 | −1.5 (3) |
C3—C4—C5—C6 | 172.29 (17) | C16—C17—C18—C20 | 178.18 (18) |
O3—C5—C6—C7 | −175.86 (16) | C17—C18—C20—C21 | 102.3 (2) |
C4—C5—C6—C7 | 3.4 (3) | C19—C18—C20—C21 | −78.0 (2) |
O3—C5—C6—C16 | 0.2 (3) | C18—C20—C21—C22 | 178.11 (19) |
C4—C5—C6—C16 | 179.46 (16) | C20—C21—C22—C23 | −119.9 (3) |
C5—C6—C7—O4 | −177.50 (16) | C21—C22—C23—C25 | −0.6 (5) |
C16—C6—C7—O4 | 6.4 (3) | C21—C22—C23—C24 | 177.0 (2) |
C5—C6—C7—C8 | 4.2 (3) | C9—C8—C26—O5 | −177.9 (19) |
C16—C6—C7—C8 | −171.91 (17) | C7—C8—C26—O5 | 2.2 (10) |
O4—C7—C8—C9 | 176.91 (16) | C26'—C8—C26—O5 | 165 (12) |
C6—C7—C8—C9 | −4.9 (3) | C9—C8—C26—C27 | 2.8 (19) |
O4—C7—C8—C26 | −3.1 (8) | C7—C8—C26—C27 | −177.2 (10) |
C6—C7—C8—C26 | 175.1 (8) | C26'—C8—C26—C27 | −14 (12) |
O4—C7—C8—C26' | −5.2 (8) | O5—C26—C27—C28 | −97.7 (14) |
C6—C7—C8—C26' | 173.0 (8) | C8—C26—C27—C28 | 81.7 (14) |
C1—O1—C9—C8 | −177.96 (15) | O5—C26—C27—C30 | 30.8 (11) |
C1—O1—C9—C4 | 2.4 (2) | C8—C26—C27—C30 | −149.8 (11) |
C7—C8—C9—O1 | 178.44 (15) | C9—C8—C26'—O5' | −172.3 (17) |
C26—C8—C9—O1 | −1.5 (9) | C7—C8—C26'—O5' | 9.9 (9) |
C26'—C8—C9—O1 | 0.6 (9) | C26—C8—C26'—O5' | −8 (14) |
C7—C8—C9—C4 | −2.0 (3) | C9—C8—C26'—C27' | 8.4 (18) |
C26—C8—C9—C4 | 178.1 (9) | C7—C8—C26'—C27' | −169.4 (9) |
C26'—C8—C9—C4 | −179.8 (8) | C26—C8—C26'—C27' | 173 (14) |
C5—C4—C9—O1 | −171.55 (15) | O5'—C26'—C27'—C28' | −27.9 (12) |
C3—C4—C9—O1 | 6.7 (2) | C8—C26'—C27'—C28' | 151.4 (12) |
C5—C4—C9—C8 | 8.9 (3) | C26—C27—C28—C29 | −167.9 (5) |
C3—C4—C9—C8 | −172.90 (16) | C30—C27—C28—C29 | 62.5 (9) |
C2—C3—C10—C11 | −63.0 (2) | C26'—C27'—C28'—C30' | −65.2 (9) |
C4—C3—C10—C11 | 120.7 (2) | C26'—C27'—C28'—C29' | 175.6 (8) |
C2—C3—C10—C15 | 117.1 (2) |
Cg1 is the centroid of the C10–C15 ring. |
D—H···A | D—H | H···A | D···A | D—H···A |
O4—H4o···O5 | 0.85 (1) | 1.54 (4) | 2.35 (3) | 158 (4) |
O4—H4o···O5′ | 0.85 (1) | 1.76 (4) | 2.55 (3) | 154 (3) |
O3—H3o···Cg1 | 0.84 (2) | 2.56 (4) | 3.355 (2) | 158 (4) |
C2—H2···O2i | 0.95 | 2.47 | 3.408 (2) | 169 |
C15—H15···O2ii | 0.95 | 2.59 | 3.351 (2) | 137 |
Symmetry codes: (i) −x+3, −y+1, −z+1; (ii) −x+2, −y+1, −z+1. |
Experimental details
Crystal data | |
Chemical formula | C30H34O5·C30H34O5 |
Mr | 949.14 |
Crystal system, space group | Triclinic, P1 |
Temperature (K) | 100 |
a, b, c (Å) | 5.9426 (2), 13.4688 (5), 16.3275 (6) |
α, β, γ (°) | 91.955 (3), 99.515 (3), 95.834 (3) |
V (Å3) | 1280.47 (8) |
Z | 1 |
Radiation type | Cu Kα |
µ (mm−1) | 0.66 |
Crystal size (mm) | 0.30 × 0.15 × 0.05 |
Data collection | |
Diffractometer | Agilent SuperNova Dual diffractometer with an Atlas detector |
Absorption correction | Multi-scan (CrysAlis PRO; Agilent, 2011) |
Tmin, Tmax | 0.826, 0.968 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 25960, 5330, 4528 |
Rint | 0.045 |
(sin θ/λ)max (Å−1) | 0.631 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.066, 0.208, 1.01 |
No. of reflections | 5330 |
No. of parameters | 363 |
No. of restraints | 54 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.57, −0.53 |
Computer programs: CrysAlis PRO (Agilent, 2011), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), ORTEP-3 (Farrugia, 1997) and DIAMOND (Brandenburg, 2006), publCIF (Westrip, 2010).
Cg1 is the centroid of the C10–C15 ring. |
D—H···A | D—H | H···A | D···A | D—H···A |
O4—H4o···O5 | 0.85 (1) | 1.54 (4) | 2.35 (3) | 158 (4) |
O4—H4o···O5' | 0.85 (1) | 1.76 (4) | 2.55 (3) | 154 (3) |
O3—H3o···Cg1 | 0.84 (2) | 2.56 (4) | 3.355 (2) | 158 (4) |
C2—H2···O2i | 0.95 | 2.47 | 3.408 (2) | 169 |
C15—H15···O2ii | 0.95 | 2.59 | 3.351 (2) | 137 |
Symmetry codes: (i) −x+3, −y+1, −z+1; (ii) −x+2, −y+1, −z+1. |
Footnotes
1Additional correspondence author, e-mail: khalijah@um.edu.my.
Acknowledgements
The authors thank the Ministry of Higher Education (Malaysia) for funding structural studies through the High-Impact Research scheme (UM.C/HIR/MOHE/SC/12), Ministry of Science and Technology grant (02–01-01-SF0329) and University of Malaya student's grant (PPP 369/2010B) for the isolation and elucidation of the co-crystal.
References
Agilent (2011). CrysAlis PRO. Agilent Technologies, Yarnton, England. Google Scholar
Awang, K., Chan, G., Litaudon, M., Ismail, N. H., Martin, M.-T. & Gueritte, F. (2010). Bioorg. Med. Chem. 18, 7873–7877. Web of Science CrossRef CAS PubMed Google Scholar
Brandenburg, K. (2006). DIAMOND. Crystal Impact GbR, Bonn, Germany. Google Scholar
Farrugia, L. J. (1997). J. Appl. Cryst. 30, 565. CrossRef IUCr Journals Google Scholar
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals Google Scholar
Verotta, L., Lovaglio, E., Vidari, G., Finzi, P. V., Neri, M. G., Raimondi, A., Parapini, S., Taramelli, D., Riva, A. & Bombardelli, E. (2004). Phytochemistry, 65, 2867–2879. Web of Science CrossRef PubMed CAS Google Scholar
Westrip, S. P. (2010). J. Appl. Cryst. 43, 920–925. Web of Science CrossRef CAS IUCr Journals 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.
The structure of the title co-crystal (I), previously isolated from Mesua ferrea, was elucidated by spectroscopic measurements (Verotta et al., 2004). Both components possess the 4-phenylcoumarin skeleton, which is substituted by two hydroxyl group at C-5 and C-7, and a geranyl group at C-6. The difference between the two compounds is the substituent at position C-8; the first is substituted with 2-methylbutanoyl and the second is substituted with the 3-methyl- butanoyl group. The title co-crystal have been evaluated as multi-drug resistant anti-bacterials (Verotta et al., 2004) and for their acetylcholinesterase (AChE) inhibitory properties (Awang et al., 2010). Herein, a crystallographic analysis is described.
The molecular components of the co-crystal (I) are shown in Figs 1 and 2. The r.m.s. deviation for the fitted atoms of the lactone ring = 0.058 Å with maximum deviations of 0.043 (2) Å for the C3 atoms and -0.058 (2) Å for the C4 atom. The phenyl ring is twisted out of this plane, forming a dihedral angle of 60.08 (9)°. The excocyclic carbonyl atom is co-planar with the benzene ring to which it is connected with the C7—C8—C26—O5 torsion angle being 2.2 (10)°; the equivalent torsion angle for the molecule with the 3-methylbutanoyl is 9.9 (9)°. The co-planarity is readily accounted for in terms of intramolecular O—H···O hydrogen bonds. The geranyl group projects almost normal to the plane through the benzene ring with the C5—C6—C16—C17 torsion angle being -87.8 (2)°. The second hydroxyl group forms an intramolecular O—H···π interaction with the phenyl ring, Table 1.
In the crystal, the lactone-carbonyl atom participates in two C—H···O interactions, Table 1, to link molecules into a supramolecular chain along the a axis, Fig. 3.