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

Journal logoCRYSTALLOGRAPHIC
COMMUNICATIONS
ISSN: 2056-9890
Volume 65| Part 2| February 2009| Pages o432-o433
doi:10.1107/S1600536809003365

2-({3-[(2R,4S,5R)-4-Hydr­­oxy-5-hy­droxy­methyl-2,3,4,5-tetra­hydro­furan-2-yl]-5-methyl-2,6-dioxo-1,2,3,6-tetra­hydro­pyrimidin-1-yl}meth­yl)isoindoline-1,3-dione

Mark Daniel Bartholomä,a Wayne Ouelletteb and Jon Zubietaa*

aDepartment of Chemistry, Syracuse University, New York 13244, USA, and bDepartment of Chemistry, Syracuse University, New York 13244, USA
*Correspondence e-mail: jazubiet@syr.edu

(Received 6 November 2008; accepted 27 January 2009; online 31 January 2009)

The title compound, C19H19N3O7, is a thymidine derivative and serves as an inter­mediate in the synthesis of a 99mTc radiolabeled nucleoside analog. Inter­molecular O—H⋯O hydrogen bonding is observed between the hydr­oxy functionalities of the ribose unit themselves as well as between a hydr­oxy group and an O atom of the phthalimide group of an adjacent mol­ecule. The mol­ecules are stacked on top of each other in the direction of the a axis. The crystal packing is further stabilized by weak intra- and inter­molecular C—H⋯O hydrogen bonds. The absolute configuration of the compound is known from the synthesis.

Related literature

For general background on human thymidine kinase 1 (hTK-1), see: Arner & Eriksson (1995[Arner, E. S. J. & Eriksson, S. (1995). Pharmacol. Ther. 67, 155-186.]); Bello (1974[Bello, L. J. (1974). Exp. Cell. Res. 89, 263-274.]); Eriksson et al. (2002[Eriksson, S., Munch-Petersen, B., Johansson, K. & Eklund, H. (2002). Cell. Mol. Life Sci. 59, 1327-1346.]). For related literature, see: Wei et al. (2005[Wei, L., Babich, J., Eckelman, W. C. & Zubieta, J. (2005). Inorg. Chem. 44, 2198-2209.]); Bartholomä et al. (2009[Bartholomä, M. D., Ploier, B., Babich, J. & Zubieta, J. (2009). Unpublished results.]); Flack (1983[Flack, H. D. (1983). Acta Cryst. A39, 876-881.]). For crystal structure of hTK-1, see: Welin et al. (2004[Welin, M., Kosinska, U., Mikkelsen, N. E., Carnrot, C., Zhu, C., Wang, L., Eriksson, S., Munch-Petersen, B. & Eklund, H. (2004). Proc. Natl Acad. Sci. 101, 17970-17975.]).

[Scheme 1]

Experimental

Crystal data

  • C19H19N3O7

  • Mr = 401.37

  • Monoclinic, P 21

  • a = 4.9334 (4) Å

  • b = 11.6287 (9) Å

  • c = 15.3208 (12) Å

  • β = 91.430 (2)°

  • V = 878.67 (12) Å3

  • Z = 2

  • Mo Kα radiation

  • μ = 0.12 mm−1

  • T = 90 (2) K

  • 0.28 × 0.22 × 0.08 mm
Data collection

  • Bruker SMART APEX diffractometer

  • Absorption correction: multi-scan (SADABS; Bruker, 1998[Bruker (1998). SMART, SAINT and SADABS. Bruker AXS Inc., Madison, Wisconsin, USA.]) Tmin = 0.968, Tmax = 0.991

  • 9291 measured reflections

  • 4344 independent reflections

  • 3949 reflections with I > 2σ(I)

  • Rint = 0.028
Refinement

  • R[F2 > 2σ(F2)] = 0.045

  • wR(F2) = 0.097

  • S = 1.08

  • 4344 reflections

  • 269 parameters

  • 1 restraint

  • H atoms treated by a mixture of independent and constrained refinement

  • Δρmax = 0.30 e Å−3

  • Δρmin = −0.21 e Å−3

Table 1
Hydrogen-bond geometry (Å, °)

Cg1 and Cg2 are the centroids of the N1/C6/C7/C9/N2/C10 and N3/C12/C13/C18/C19 rings, respectively.
D—H⋯A D—H H⋯A D⋯A D—H⋯A
O1—H1⋯O2i 0.81 (3) 2.02 (3) 2.815 (2) 170 (3)
O2—H2A⋯O6i 0.84 (3) 1.92 (3) 2.698 (2) 155 (3)
C3—H3⋯O6ii 1.00 2.45 3.445 (2) 171
C8—H8A⋯O7iii 0.98 2.43 3.341 (3) 154
C14—H14⋯O5iv 0.95 2.44 3.116 (3) 128
C15—H15⋯O7iv 0.95 2.60 3.484 (3) 155
C5—H5⋯O4 1.00 2.33 2.740 (2) 104
C11—H11A⋯O4 0.99 2.29 2.747 (2) 107
C11—H11B⋯O7 0.99 2.52 2.915 (3) 104
C8—H8B⋯Cg1v 0.98 2.71 3.534 (2) 143
C11—H11A⋯Cg2vi 0.99 2.73 3.611 (2) 149
Symmetry codes: (i) [-x+2, y-{\script{1\over 2}}, -z+2]; (ii) [-x+1, y-{\script{1\over 2}}, -z+2]; (iii) [-x+1, y-{\script{1\over 2}}, -z+1]; (iv) [-x, y+{\script{1\over 2}}, -z+1]; (v) x-1, y, z; (vi) x+1, y, z.

Data collection: SMART (Bruker, 1998[Bruker (1998). SMART, SAINT and SADABS. Bruker AXS Inc., Madison, Wisconsin, USA.]); cell refinement: SAINT (Bruker, 1998[Bruker (1998). SMART, SAINT and SADABS. Bruker AXS Inc., Madison, Wisconsin, USA.]); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008[Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.]); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008[Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.]); molecular graphics: DIAMOND (Brandenburg & Putz, 1999[Brandenburg, K. & Putz, H. (1999). DIAMOND. Crystal Impact GbR, Bonn, Germany.]); software used to prepare material for publication: SHELXTL (Sheldrick, 2008[Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.]).

Supporting information

Crystal structure: contains datablocks I, global. DOI: 10.1107/S1600536809003365/fb2127sup1.cif

Structure factors: contains datablock I. DOI: 10.1107/S1600536809003365/fb2127Isup2.hkl

checkCIF report


Comment top

In recent years, the development of radiolabeled nucleosides and nucleoside analogs has gained increased interest because of their potential use as probes for tumor cell proliferation. The targeted enzyme is the human cytosolic thymidine kinase (hTK-1), an enzyme of the pyrimidine salvage pathway, which catalyzes the phosphorylation of thymidine and uridine as natural substrates to their corresponding 5'-monophosphates (Welin et al., 2004). These monophosphates are precursors of the DNA synthesis. Further conversion to the di- and triphosphates by nucleoside mono- and diphosphate kinases finally results in DNA incorporation. Most important, proliferating cells such as tumor cells show a dramatically increased hTK-1 activity compared to quiescent cells which makes hTK-1 an attractive target for selective imaging and therapeutic applications (Bello, 1974). Moreover, nucleosides are taken up by proliferating cells through facilitated diffusion but the cellular efflux of the corresponding negatively charged 5'-monophosphates is retarded (Arner & Eriksson, 1995). Thus, a radiolabeled nucleoside analog would be trapped inside the cell resulting in an accumulation in tissue with elevated hTK-1 activity such as tumor cells. The main challenge is the development of a nucleoside derivative which retains its substrate activity since hTK-1 has a narrow substrate specifity (Eriksson et al., 2002). The literature on the interaction of thymidine derivatives with hTK-1 is not totally unambiguous about the effects of various substitutions. In general, major modifications of thymidine or uridine, respectively, led to a highly decreased activity of the corresponding compound. On the other hand, several derivatives modified either at the ribose and the base site are reported which retain their activity. To shed light on the effects of various modifications on the substrate activity, we prepared a library of nucleoside analogs that had been modified at different positions of the ribose and base moiety. With this library, we expand our SAAC concept (single amino acid chelate) on nucleosides for radioimaging and radiotherapeutic purposes (Wei et al. 2005, Bartholomä et al., 2009).

2-((2,3-dihydro-3-((2R,4S,5R)-tetrahydro-4-hydroxy-5- (hydroxymethyl)furan-2-yl)-5-methyl-2,6-dioxopyrimidin-1(6H)-yl) methyl)isoindoline-1,3-dione is an intermediate in the synthesis of a 99mTc radiolabeled nucleoside analog. The corresponding final product is a representative of the N-3 derivatized thymidine analogs with the shortest tether length applicable between the bioactive molecule and the chelate. The entire synthetic pathway will be described elsewhere. The SAAC chelate enables a chemically robust and inert coordination of the [M(CO)3]+ core (M = 186Re, 188Re, 99mTc). 99mTc with its ideal decay properties, low cost and good availability can be used for imaging purposes while the corresponding rhenium complexes would act as therapeutic counterparts.

2-((2,3-dihydro-3-((2R,4S,5R)-tetrahydro-4-hydroxy-5- (hydroxymethyl)furan-2-yl)-5-methyl-2,6-dioxopyrimidin-1(6H)-yl) methyl)isoindoline-1,3-dione shows strong intermolecular hydrogen bonding interactions of the type O—H···O as well as weak intra- and intermolecular C—H···O hydrogen bonds (Tab. 1). The O—H···O hydrogen bonding interaction occurs between the hydroxyl group at the 5' position of the sugar moiety (O1—H1C) and the oxygen atom O2 at the 2' position of an adjacent molecule (O2) with a O1—H1C···O2 distance of 2.815 (2) Å (Tab. 1). Another O—H···O hydrogen bonding interaction is observed between the hydroxy group at the 2' position of the ribose moiety (O2—H2A) and the oxygen atom of the phthalimide residue (O6) of the adjacent molecule. The corresponding O2—H2A···O6 distance is 2.698 (2) Å. The molecules are stacked on top of each other in direction of the a axis. There are π-π electron interactions between the aromatic rings N3\C12\C13\C18\C19 and C13\C14\C15\C16\C17\C18 of the phthalimide moiety. The distance between the centroids of these rings is 3.7245 (12) Å. Moreover, there are also C-H···π-electron ring interactions (Tab. 1). The ribose moiety of the nucleoside analog adopts a twist conformation with C2, O3, and C5 in plane. The atoms C3 and C4 are out of plane with d = 0.2356 (25) Å and d = -0.4099 (25) Å, respectively. The distance between C6 and C7 with 1.334 (3) Å is representative for the double bond character. The phthalimide residue has essentially a planar geometry. The absolute configuration of the compound is known by synthesis. All the bond lengths and angles are in expected ranges.

Related literature top

For related literature, see: Arner & Eriksson (1995); Bello (1974); Eriksson et al. (2002); Welin et al. (2004); Wei et al. 2005, Bartholomä et al., 2009; Flack, 1983. It would be much more useful to readers if the "Related literature" section had some kind of simple sub-division, so that, instead of just "For related literature, see···" it said, for example, "For general background, see···. For related structures, see···; etc. Please revise this section as indicated.

Experimental top

1 g (4.13 mmol) of 1-(2-deoxy-β-D-ribofuranosyl)thymine, 1.862 g (4.54 mmol) of phthalimidomethylpyridinium p-toluenesulfonate and 1.141 g (8.26 mmol) of K2CO3 were suspended in anhydrous N,N-dimethylformamide and kept at 50°C for 2 d. The solvent was removed in vacuum. 50 ml of water were added to the yellowish suspension and the aqueous phase was extracted twice with dichloromethane. The combined organic layers were washed with water and brine, dried with MgSO4 and evaporated to dryness. The crude product was purified by silica gel column chromatography using CH2Cl2:MeOH 15:1. The last fraction contained the product. Single crystals suitable for X-ray diffraction were obtained by recrystallizing the product in methanol yielding colorless plates. 1H NMR (d4-MeOD): δ = 1.90 (s, 3 H), 2.35 (m, 2 H), 3.87 (m, 2 H), 3.98 (dd, J = 3.20 Hz, 3.30 Hz, 1 H), 3.56 (dd, J = 4.41 Hz, J = 9.18 Hz, 1 H), 5.90 (s, 2 H), 6.24 (t, J = 6.53 Hz, 1 H), 7.52 (s, 1 H), 7.72 (m, 2 H), 7.84 (m, 2 H). p.p.m.. IR: ν = 3088, 2963, 2542, 1789, 1728, 1703, 1646, 1466, 1428, 1406, 1347, 1272, 1248, 1218, 1178, 1118, 1070, 1037, 1014, 992, 935, 892, 847, 769, 729, 716, 632, 608, 567, 532, 515, 491 cm-1.

Refinement top

All the H atoms were discernible in the difference electron density map. However, with exception of the hydroxyl hydrogens whose coordinates were refined freely they were situated into the idealized positions and refined by the riding model. The applied constraints: C—Haryl = 0.95; C—Hmethine = 1.00; C—Hmethylene = 0.99 and C—Hmethyl = 0.98Å, respectively, and included in the riding-model approximation with Uiso(H) = 1.2Ueq(C) or 1.5Ueq(C/O) for methyl and hydroxyl H atoms. The Friedel pairs were not merged and the Flack absolute structure parameter converged to an indeterminate value (Flack, 1983) with a large standard uncertainty (0.3 (9)). The absolute structure has been derived by the known structure of the precursors used in the synthesis.

Computing details top

Data collection: SMART (Bruker, 1998); cell refinement: SAINT (Bruker, 1998); data reduction: SAINT (Bruker, 1998); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: DIAMOND (Brandenburg & Putz, 1999); software used to prepare material for publication: SHELXTL (Sheldrick, 2008).

Figures top
[Figure 1] Fig. 1. View of the title structure, with the atom numbering scheme and the displacement ellipsoids drawn at 50% probability level.
2-({3-[(2R,4S,5R)-4-Hydroxy-5-hydroxymethyl-2,3,4,5- tetrahydrofuran-2-yl]-5-methyl-2,6-dioxo-1,2,3,6-tetrahydropyrimidin-1- yl}methyl)isoindoline-1,3-dione top
Crystal data top
C19H19N3O7F(000) = 420
Mr = 401.37Dx = 1.517 Mg m−3
Monoclinic, P21Mo Kα radiation, λ = 0.71073 Å
Hall symbol: P2ybCell parameters from 2431 reflections
a = 4.9334 (4) Åθ = 2.2–27.9°
b = 11.6287 (9) ŵ = 0.12 mm−1
c = 15.3208 (12) ÅT = 90 K
β = 91.430 (2)°Plate, colorless
V = 878.67 (12) Å30.28 × 0.22 × 0.08 mm
Z = 2
Data collection top
Bruker SMART APEX
diffractometer		4344 independent reflections
Radiation source: fine-focus sealed tube3949 reflections with I > 2σ(I)
Graphite monochromatorRint = 0.028
Detector resolution: 512 pixels mm-1θmax = 28.3°, θmin = 2.2°
ϕ and ω scansh = −6→6
Absorption correction: multi-scan
(SADABS; Bruker, 1998)		k = −15→15
Tmin = 0.968, Tmax = 0.991l = −20→20
9291 measured reflections
Refinement top
Refinement on F2Primary atom site location: structure-invariant direct methods
Least-squares matrix: fullSecondary atom site location: difference Fourier map
R[F2 > 2σ(F2)] = 0.045Hydrogen site location: difference Fourier map
wR(F2) = 0.097H atoms treated by a mixture of independent and constrained refinement
S = 1.08 w = 1/[σ2(Fo2) + (0.0453P)2 + 0.1384P]
where P = (Fo2 + 2Fc2)/3
4344 reflections(Δ/σ)max < 0.001
269 parametersΔρmax = 0.30 e Å−3
1 restraintΔρmin = −0.21 e Å−3
69 constraints
Crystal data top
C19H19N3O7V = 878.67 (12) Å3
Mr = 401.37Z = 2
Monoclinic, P21Mo Kα radiation
a = 4.9334 (4) ŵ = 0.12 mm−1
b = 11.6287 (9) ÅT = 90 K
c = 15.3208 (12) Å0.28 × 0.22 × 0.08 mm
β = 91.430 (2)°
Data collection top
Bruker SMART APEX
diffractometer		4344 independent reflections
Absorption correction: multi-scan
(SADABS; Bruker, 1998)		3949 reflections with I > 2σ(I)
Tmin = 0.968, Tmax = 0.991Rint = 0.028
9291 measured reflections
Refinement top
R[F2 > 2σ(F2)] = 0.0451 restraint
wR(F2) = 0.097H atoms treated by a mixture of independent and constrained refinement
S = 1.08Δρmax = 0.30 e Å−3
4344 reflectionsΔρmin = −0.21 e Å−3
269 parameters
Special details top

Geometry. All esds (except the esd in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell esds are taken into account individually in the estimation of esds in distances, angles and torsion angles; correlations between esds in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell esds is used for estimating esds 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 > 2sigma(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*/Ueq
O10.6387 (3)−0.27208 (14)0.89260 (11)0.0250 (3)
H10.715 (6)−0.331 (3)0.9067 (19)0.038*
O21.1522 (3)0.00883 (13)1.06603 (10)0.0207 (3)
H2A1.200 (5)−0.027 (3)1.1113 (18)0.031*
O30.9764 (3)−0.07418 (12)0.89077 (9)0.0164 (3)
O41.0136 (3)0.24132 (13)0.80115 (10)0.0235 (3)
O50.3376 (3)0.16674 (13)0.60019 (9)0.0210 (3)
O60.5554 (3)0.43064 (14)0.79515 (9)0.0219 (3)
O70.4438 (3)0.39579 (13)0.49918 (9)0.0217 (3)
N10.7609 (3)0.07853 (14)0.81636 (11)0.0156 (3)
N20.6792 (3)0.20148 (14)0.69845 (11)0.0154 (3)
N30.5461 (3)0.39145 (15)0.64784 (11)0.0158 (3)
C10.6506 (4)−0.19797 (18)0.96556 (14)0.0188 (4)
H1A0.6331−0.24431.01930.023*
H1B0.4948−0.14440.96200.023*
C20.9127 (4)−0.12818 (16)0.97232 (13)0.0148 (4)
H21.0654−0.17990.99090.018*
C30.8896 (4)−0.03031 (18)1.03767 (12)0.0155 (4)
H30.7713−0.05031.08750.019*
C40.7686 (4)0.06349 (17)0.97993 (13)0.0151 (4)
H4A0.80440.14081.00480.018*
H4B0.57070.05310.97100.018*
C50.9186 (4)0.04568 (17)0.89526 (13)0.0150 (4)
H51.09240.08990.89770.018*
C60.5569 (4)0.00709 (17)0.78501 (13)0.0159 (4)
H60.5206−0.06150.81630.019*
C70.4083 (4)0.02949 (17)0.71310 (12)0.0159 (4)
C80.1942 (4)−0.05012 (18)0.67757 (13)0.0193 (4)
H8A0.2571−0.08600.62380.029*
H8B0.0277−0.00660.66480.029*
H8C0.1576−0.10990.72080.029*
C90.4629 (4)0.13441 (17)0.66525 (13)0.0154 (4)
C100.8316 (4)0.17875 (17)0.77439 (13)0.0162 (4)
C110.7536 (4)0.30277 (17)0.64747 (14)0.0171 (4)
H11A0.92540.33490.67170.021*
H11B0.78490.27910.58650.021*
C120.4075 (4)0.43033 (17)0.57187 (13)0.0165 (4)
C130.2165 (4)0.52024 (17)0.60267 (13)0.0167 (4)
C140.0285 (4)0.58521 (18)0.55652 (14)0.0198 (4)
H140.00460.57720.49510.024*
C15−0.1251 (4)0.66315 (19)0.60343 (15)0.0228 (5)
H15−0.25680.70910.57350.027*
C16−0.0891 (4)0.67490 (19)0.69306 (15)0.0232 (5)
H16−0.19830.72790.72360.028*
C170.1052 (4)0.60998 (18)0.73916 (15)0.0200 (4)
H170.13350.61910.80030.024*
C180.2537 (4)0.53243 (17)0.69231 (13)0.0167 (4)
C190.4663 (4)0.44926 (17)0.72216 (13)0.0166 (4)
Atomic displacement parameters (Å2) top
U11U22U33U12U13U23
O10.0313 (9)0.0176 (8)0.0258 (8)−0.0017 (7)−0.0052 (7)−0.0002 (7)
O20.0200 (7)0.0219 (8)0.0199 (7)−0.0031 (6)−0.0078 (6)0.0045 (6)
O30.0187 (7)0.0132 (7)0.0175 (7)0.0029 (6)0.0042 (5)0.0027 (6)
O40.0231 (8)0.0181 (8)0.0286 (8)−0.0076 (6)−0.0111 (6)0.0083 (6)
O50.0237 (7)0.0187 (8)0.0201 (8)−0.0032 (6)−0.0056 (6)0.0028 (6)
O60.0243 (7)0.0254 (8)0.0158 (7)−0.0049 (6)−0.0060 (6)0.0019 (6)
O70.0280 (8)0.0213 (8)0.0157 (7)−0.0004 (6)−0.0007 (6)0.0009 (6)
N10.0160 (8)0.0140 (8)0.0167 (8)−0.0023 (7)−0.0022 (6)0.0033 (7)
N20.0160 (8)0.0133 (8)0.0169 (8)−0.0031 (6)−0.0014 (6)0.0034 (6)
N30.0169 (8)0.0144 (8)0.0159 (8)−0.0015 (6)−0.0024 (6)0.0028 (7)
C10.0178 (10)0.0155 (10)0.0232 (11)−0.0024 (8)0.0011 (8)0.0024 (8)
C20.0125 (9)0.0140 (10)0.0179 (10)0.0022 (7)0.0001 (7)0.0038 (7)
C30.0143 (9)0.0161 (9)0.0161 (9)−0.0004 (7)0.0022 (7)0.0028 (8)
C40.0151 (8)0.0121 (9)0.0182 (9)0.0005 (7)−0.0011 (7)−0.0009 (7)
C50.0147 (9)0.0130 (9)0.0171 (9)−0.0001 (7)−0.0021 (7)0.0031 (7)
C60.0168 (9)0.0127 (9)0.0183 (9)−0.0033 (7)0.0027 (7)0.0020 (7)
C70.0150 (9)0.0154 (9)0.0173 (9)−0.0021 (7)0.0025 (7)−0.0016 (8)
C80.0200 (10)0.0182 (11)0.0198 (10)−0.0057 (8)−0.0004 (8)0.0001 (8)
C90.0139 (9)0.0151 (10)0.0172 (9)−0.0006 (7)0.0005 (7)0.0002 (7)
C100.0146 (8)0.0158 (10)0.0180 (10)−0.0010 (8)−0.0011 (7)0.0029 (8)
C110.0148 (9)0.0159 (10)0.0205 (10)−0.0020 (8)−0.0015 (8)0.0057 (8)
C120.0198 (9)0.0130 (9)0.0166 (9)−0.0066 (8)−0.0032 (7)0.0032 (8)
C130.0182 (9)0.0142 (9)0.0175 (9)−0.0053 (8)−0.0014 (7)0.0025 (8)
C140.0212 (10)0.0188 (10)0.0191 (10)−0.0034 (8)−0.0042 (8)0.0031 (8)
C150.0205 (10)0.0158 (10)0.0317 (12)−0.0028 (8)−0.0039 (9)0.0067 (9)
C160.0229 (10)0.0138 (10)0.0333 (13)−0.0026 (8)0.0058 (9)−0.0005 (9)
C170.0262 (11)0.0153 (10)0.0186 (10)−0.0063 (8)0.0017 (8)0.0009 (8)
C180.0179 (9)0.0120 (9)0.0201 (10)−0.0062 (7)−0.0017 (7)0.0031 (8)
C190.0177 (9)0.0140 (10)0.0181 (9)−0.0078 (7)−0.0021 (8)0.0030 (8)
Geometric parameters (Å, º) top
O1—C11.412 (3)C4—C51.523 (3)
O1—H10.81 (3)C4—H4A0.9900
O2—C31.431 (2)C4—H4B0.9900
O2—H2A0.84 (3)C5—H51.0000
O3—C51.425 (2)C6—C71.334 (3)
O3—C21.440 (2)C6—H60.9500
O4—C101.219 (2)C7—C91.452 (3)
O5—C91.219 (2)C7—C81.497 (3)
O6—C191.211 (2)C8—H8A0.9800
O7—C121.202 (2)C8—H8B0.9800
N1—C101.380 (2)C8—H8C0.9800
N1—C61.382 (2)C11—H11A0.9900
N1—C51.471 (3)C11—H11B0.9900
N2—C101.395 (3)C12—C131.492 (3)
N2—C91.407 (2)C13—C141.378 (3)
N2—C111.465 (3)C13—C181.388 (3)
N3—C191.388 (3)C14—C151.392 (3)
N3—C121.409 (3)C14—H140.9500
N3—C111.453 (3)C15—C161.387 (3)
C1—C21.528 (3)C15—H150.9500
C1—H1A0.9900C16—C171.398 (3)
C1—H1B0.9900C16—H160.9500
C2—C31.522 (3)C17—C181.375 (3)
C2—H21.0000C17—H170.9500
C3—C41.517 (3)C18—C191.490 (3)
C3—H31.0000
C1—O1—H1107 (2)C6—C7—C9118.41 (17)
C3—O2—H2A109.2 (19)C6—C7—C8123.23 (18)
C5—O3—C2109.66 (14)C9—C7—C8118.32 (17)
C10—N1—C6122.41 (16)C7—C8—H8A109.5
C10—N1—C5117.88 (16)C7—C8—H8B109.5
C6—N1—C5119.67 (16)H8A—C8—H8B109.5
C10—N2—C9125.79 (16)C7—C8—H8C109.5
C10—N2—C11117.40 (16)H8A—C8—H8C109.5
C9—N2—C11116.80 (16)H8B—C8—H8C109.5
C19—N3—C12112.37 (16)O5—C9—N2119.29 (18)
C19—N3—C11124.13 (16)O5—C9—C7125.11 (18)
C12—N3—C11123.48 (17)N2—C9—C7115.60 (17)
O1—C1—C2113.36 (17)O4—C10—N1122.69 (18)
O1—C1—H1A108.9O4—C10—N2123.01 (18)
C2—C1—H1A108.9N1—C10—N2114.30 (16)
O1—C1—H1B108.9N3—C11—N2112.49 (16)
C2—C1—H1B108.9N3—C11—H11A109.1
H1A—C1—H1B107.7N2—C11—H11A109.1
O3—C2—C3105.44 (15)N3—C11—H11B109.1
O3—C2—C1112.05 (16)N2—C11—H11B109.1
C3—C2—C1111.39 (16)H11A—C11—H11B107.8
O3—C2—H2109.3O7—C12—N3125.30 (19)
C3—C2—H2109.3O7—C12—C13129.58 (19)
C1—C2—H2109.3N3—C12—C13105.12 (16)
O2—C3—C4106.77 (16)C14—C13—C18121.50 (19)
O2—C3—C2110.83 (16)C14—C13—C12130.12 (19)
C4—C3—C2100.89 (15)C18—C13—C12108.38 (17)
O2—C3—H3112.5C13—C14—C15117.4 (2)
C4—C3—H3112.5C13—C14—H14121.3
C2—C3—H3112.5C15—C14—H14121.3
C3—C4—C5101.91 (15)C16—C15—C14121.2 (2)
C3—C4—H4A111.4C16—C15—H15119.4
C5—C4—H4A111.4C14—C15—H15119.4
C3—C4—H4B111.4C15—C16—C17121.1 (2)
C5—C4—H4B111.4C15—C16—H16119.5
H4A—C4—H4B109.3C17—C16—H16119.5
O3—C5—N1108.46 (16)C18—C17—C16117.3 (2)
O3—C5—C4106.03 (15)C18—C17—H17121.4
N1—C5—C4113.97 (16)C16—C17—H17121.4
O3—C5—H5109.4C17—C18—C13121.61 (19)
N1—C5—H5109.4C17—C18—C19130.20 (19)
C4—C5—H5109.4C13—C18—C19108.19 (17)
C7—C6—N1123.40 (18)O6—C19—N3124.58 (19)
C7—C6—H6118.3O6—C19—C18129.48 (19)
N1—C6—H6118.3N3—C19—C18105.92 (16)
C5—O3—C2—C3−16.30 (19)C11—N2—C10—O43.0 (3)
C5—O3—C2—C1105.04 (18)C9—N2—C10—N12.3 (3)
O1—C1—C2—O348.5 (2)C11—N2—C10—N1−176.37 (17)
O1—C1—C2—C3166.33 (16)C19—N3—C11—N263.4 (2)
O3—C2—C3—O2−78.12 (18)C12—N3—C11—N2−118.22 (19)
C1—C2—C3—O2160.12 (16)C10—N2—C11—N3−112.99 (19)
O3—C2—C3—C434.68 (18)C9—N2—C11—N368.2 (2)
C1—C2—C3—C4−87.08 (19)C19—N3—C12—O7178.40 (19)
O2—C3—C4—C576.85 (18)C11—N3—C12—O7−0.2 (3)
C2—C3—C4—C5−39.01 (18)C19—N3—C12—C13−1.4 (2)
C2—O3—C5—N1−131.95 (16)C11—N3—C12—C13−179.95 (16)
C2—O3—C5—C4−9.2 (2)O7—C12—C13—C141.6 (4)
C10—N1—C5—O3−135.93 (17)N3—C12—C13—C14−178.7 (2)
C6—N1—C5—O341.6 (2)O7—C12—C13—C18−178.3 (2)
C10—N1—C5—C4106.2 (2)N3—C12—C13—C181.5 (2)
C6—N1—C5—C4−76.3 (2)C18—C13—C14—C15−0.6 (3)
C3—C4—C5—O330.72 (18)C12—C13—C14—C15179.57 (19)
C3—C4—C5—N1149.95 (16)C13—C14—C15—C160.2 (3)
C10—N1—C6—C7−1.3 (3)C14—C15—C16—C170.9 (3)
C5—N1—C6—C7−178.70 (19)C15—C16—C17—C18−1.5 (3)
N1—C6—C7—C9−0.1 (3)C16—C17—C18—C131.1 (3)
N1—C6—C7—C8177.74 (18)C16—C17—C18—C19−177.88 (19)
C10—N2—C9—O5176.57 (19)C14—C13—C18—C17−0.1 (3)
C11—N2—C9—O5−4.8 (3)C12—C13—C18—C17179.79 (18)
C10—N2—C9—C7−3.6 (3)C14—C13—C18—C19179.10 (18)
C11—N2—C9—C7175.06 (17)C12—C13—C18—C19−1.0 (2)
C6—C7—C9—O5−177.8 (2)C12—N3—C19—O6179.60 (19)
C8—C7—C9—O54.2 (3)C11—N3—C19—O6−1.9 (3)
C6—C7—C9—N22.4 (3)C12—N3—C19—C180.8 (2)
C8—C7—C9—N2−175.61 (17)C11—N3—C19—C18179.35 (17)
C6—N1—C10—O4−179.05 (19)C17—C18—C19—O60.6 (4)
C5—N1—C10—O4−1.6 (3)C13—C18—C19—O6−178.5 (2)
C6—N1—C10—N20.3 (3)C17—C18—C19—N3179.28 (19)
C5—N1—C10—N2177.71 (17)C13—C18—C19—N30.2 (2)
C9—N2—C10—O4−178.40 (19)
Hydrogen-bond geometry (Å, º) top
D—H···AD—HH···AD···AD—H···A
O1—H1···O2i0.81 (3)2.02 (3)2.815 (2)170 (3)
O2—H2A···O6i0.84 (3)1.92 (3)2.698 (2)155 (3)
C3—H3···O6ii1.002.453.445 (2)171
C8—H8A···O7iii0.982.433.341 (3)154
C14—H14···O5iv0.952.443.116 (3)128
C15—H15···O7iv0.952.603.484 (3)155
C5—H5···O41.002.332.740 (2)104
C11—H11A···O40.992.292.747 (2)107
C11—H11B···O70.992.522.915 (3)104
C8—H8B···Cg1v0.982.713.534 (2)143
C11—H11A···Cg2vi0.992.733.611 (2)149
Symmetry codes: (i) −x+2, y−1/2, −z+2; (ii) −x+1, y−1/2, −z+2; (iii) −x+1, y−1/2, −z+1; (iv) −x, y+1/2, −z+1; (v) x−1, y, z; (vi) x+1, y, z.

Experimental details

Crystal data
Chemical formulaC19H19N3O7
Mr401.37
Crystal system, space groupMonoclinic, P21
Temperature (K)90
a, b, c (Å)4.9334 (4), 11.6287 (9), 15.3208 (12)
β (°) 91.430 (2)
V (Å3)878.67 (12)
Z2
Radiation typeMo Kα
µ (mm−1)0.12
Crystal size (mm)0.28 × 0.22 × 0.08
Data collection
DiffractometerBruker SMART APEX
diffractometer
Absorption correctionMulti-scan
(SADABS; Bruker, 1998)
Tmin, Tmax0.968, 0.991
No. of measured, independent and
observed [I > 2σ(I)] reflections		9291, 4344, 3949
Rint0.028
(sin θ/λ)max (Å−1)0.667
Refinement
R[F2 > 2σ(F2)], wR(F2), S 0.045, 0.097, 1.08
No. of reflections4344
No. of parameters269
No. of restraints1
H-atom treatmentH atoms treated by a mixture of independent and constrained refinement
Δρmax, Δρmin (e Å−3)0.30, −0.21

Computer programs: SMART (Bruker, 1998), SAINT (Bruker, 1998), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), DIAMOND (Brandenburg & Putz, 1999), SHELXTL (Sheldrick, 2008).

Hydrogen-bond geometry (Å, º) top
D—H···AD—HH···AD···AD—H···A
O1—H1···O2i0.81 (3)2.02 (3)2.815 (2)170 (3)
O2—H2A···O6i0.84 (3)1.92 (3)2.698 (2)155 (3)
C3—H3···O6ii1.002.453.445 (2)170.7
C8—H8A···O7iii0.982.433.341 (3)154.0
C14—H14···O5iv0.952.443.116 (3)128.2
C15—H15···O7iv0.952.603.484 (3)155.2
C5—H5···O41.002.332.740 (2)103.6
C11—H11A···O40.992.292.747 (2)106.7
C11—H11B···O70.992.522.915 (3)103.5
C8—H8B···Cg1v0.982.713.534 (2)143
C11—H11A···Cg2vi0.992.733.611 (2)149
Symmetry codes: (i) −x+2, y−1/2, −z+2; (ii) −x+1, y−1/2, −z+2; (iii) −x+1, y−1/2, −z+1; (iv) −x, y+1/2, −z+1; (v) x−1, y, z; (vi) x+1, y, z.
 

Acknowledgements

The authors gratefully acknowledge the support of the National Science Foundation (grant No. CHE-0604527) and Molecular Insight Pharmaceuticals Inc.

References

First citationArner, E. S. J. & Eriksson, S. (1995). Pharmacol. Ther. 67, 155–186.  CrossRef CAS PubMed Web of Science Google Scholar
 First citationBartholomä, M. D., Ploier, B., Babich, J. & Zubieta, J. (2009). Unpublished results.  Google Scholar
 First citationBello, L. J. (1974). Exp. Cell. Res. 89, 263–274.  CrossRef CAS PubMed Web of Science Google Scholar
 First citationBrandenburg, K. & Putz, H. (1999). DIAMOND. Crystal Impact GbR, Bonn, Germany.  Google Scholar
 First citationBruker (1998). SMART, SAINT and SADABS. Bruker AXS Inc., Madison, Wisconsin, USA.  Google Scholar
 First citationEriksson, S., Munch-Petersen, B., Johansson, K. & Eklund, H. (2002). Cell. Mol. Life Sci. 59, 1327–1346.  Web of Science CrossRef PubMed CAS Google Scholar
 First citationFlack, H. D. (1983). Acta Cryst. A39, 876–881.  CrossRef CAS Web of Science IUCr Journals Google Scholar
 First citationSheldrick, G. M. (2008). Acta Cryst. A64, 112–122.  Web of Science CrossRef CAS IUCr Journals Google Scholar
 First citationWei, L., Babich, J., Eckelman, W. C. & Zubieta, J. (2005). Inorg. Chem. 44, 2198–2209.  Web of Science CSD CrossRef PubMed CAS Google Scholar
 First citationWelin, M., Kosinska, U., Mikkelsen, N. E., Carnrot, C., Zhu, C., Wang, L., Eriksson, S., Munch-Petersen, B. & Eklund, H. (2004). Proc. Natl Acad. Sci. 101, 17970–17975.  Web of Science CrossRef PubMed CAS Google Scholar

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Journal logoCRYSTALLOGRAPHIC
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ISSN: 2056-9890
Volume 65| Part 2| February 2009| Pages o432-o433
doi:10.1107/S1600536809003365
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