Acta Cryst. (2009). E65, o2205-o2206 [ doi:10.1107/S1600536809032450 ]
-methoxycarbonyl-6,14-endo-ethenotetrahydronorthebaineIn the title compound (systematic name: methyl 17-cyano-3,6-dimethoxy-4,5
-epoxy-6,14-endo-ethenomorphinan-7-carboxylate), C23H24N2O5, the dihydrofuran ring adopts a twist conformation, while the piperidine ring is in a chair conformation. The benzene-fused cyclohexene ring adopts an envelope conformation. An intramolecular C-H
O hydrogen bond is observed. Intermolecular C-H
N and C-H
O hydrogen bonds form C(5) chains along the a and b axes, respectively, and together they form a three-dimensional network.
6,14-endo-Etheno-7α-methoxycarbonyltetrahydrothebaine was prepared according to the literature method (Odabaşoğlu et al., 2009). For the preparation of the title compound, 6,14-endo-etheno-7α-methoxycarbonyltetrahydrothebaine (240 mg, 0,6 mmol) was heated under reflux with cyanogen bromide (85m g, 0,8 mmol) in dry chloroform (20 ml) for 24 h and monitored by TLC. After evaporation of the solvent, the reaction mixture was separated by column chromatography, using a mixture of methanol-chloroform (1:1) as the eluant. The N-cyanonor compound was recrystallized from methanol in 2 d (m.p.440–441 K).
H atoms were positioned geometrically (C-H = 0.93–0.98 Å) and refined using a riding model with Uiso(H) = 1.2Ueq(C) and 1.5Ueq(methyl C). A rotating–group model was used for the methyl groups. In the absence of significant anomalous scattering, 1694 Friedel pairs were merged in the final refinement.
Data collection: X-AREA (Stoe & Cie, 2002); cell refinement: X-AREA (Stoe & Cie, 2002); data reduction: X-RED32 (Stoe & Cie, 2002); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 for Windows (Farrugia, 1997); software used to prepare material for publication: WinGX (Farrugia, 1999).
| C23H24N2O5 | F(000) = 864 |
| Mr = 408.44 | Dx = 1.375 Mg m−3 |
| Orthorhombic, P212121 | Mo Kα radiation, λ = 0.71073 Å |
| Hall symbol: P 2ac 2ab | Cell parameters from 9908 reflections |
| a = 7.1880 (3) Å | θ = 1.8–28.0° |
| b = 11.1380 (4) Å | µ = 0.10 mm−1 |
| c = 24.6389 (10) Å | T = 296 K |
| V = 1972.59 (13) Å3 | Prism, colourless |
| Z = 4 | 0.63 × 0.44 × 0.27 mm |
| Stoe IPDS 2 diffractometer | 2328 independent reflections |
| Radiation source: sealed X-ray tube, 12 x 0.4 mm long-fine focus | 2035 reflections with I > 2σ(I) |
| plane graphite | Rint = 0.021 |
| Detector resolution: 6.67 pixels mm-1 | θmax = 26.5°, θmin = 2.0° |
| ω–scan rotation method | h = −9→9 |
| Absorption correction: integration (X-RED32; Stoe & Cie, 2002) | k = −13→13 |
| Tmin = 0.953, Tmax = 0.975 | l = −30→20 |
| 9908 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)] = 0.036 | Hydrogen site location: inferred from neighbouring sites |
| wR(F2) = 0.089 | H-atom parameters constrained |
| S = 1.04 | w = 1/[σ2(Fo2) + (0.0504P)2 + 0.208P] where P = (Fo2 + 2Fc2)/3 |
| 2328 reflections | (Δ/σ)max = 0.001 |
| 274 parameters | Δρmax = 0.20 e Å−3 |
| 0 restraints | Δρmin = −0.20 e Å−3 |
| C23H24N2O5 | V = 1972.59 (13) Å3 |
| Mr = 408.44 | Z = 4 |
| Orthorhombic, P212121 | Mo Kα radiation |
| a = 7.1880 (3) Å | µ = 0.10 mm−1 |
| b = 11.1380 (4) Å | T = 296 K |
| c = 24.6389 (10) Å | 0.63 × 0.44 × 0.27 mm |
| Stoe IPDS 2 diffractometer | 2328 independent reflections |
| Absorption correction: integration (X-RED32; Stoe & Cie, 2002) | 2035 reflections with I > 2σ(I) |
| Tmin = 0.953, Tmax = 0.975 | Rint = 0.021 |
| 9908 measured reflections | θmax = 26.5° |
| R[F2 > 2σ(F2)] = 0.036 | H-atom parameters constrained |
| wR(F2) = 0.089 | Δρmax = 0.20 e Å−3 |
| S = 1.04 | Δρmin = −0.20 e Å−3 |
| 2328 reflections | Absolute structure: ? |
| 274 parameters | Flack parameter: ? |
| 0 restraints | Rogers parameter: ? |
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. |
| x | y | z | Uiso*/Ueq | ||
| C1 | 0.1582 (3) | 0.5657 (2) | 0.76990 (11) | 0.0558 (6) | |
| C2 | 0.1229 (3) | 0.6871 (2) | 0.76212 (13) | 0.0651 (8) | |
| H2 | 0.0430 | 0.7264 | 0.7859 | 0.078* | |
| C3 | 0.2027 (3) | 0.7513 (2) | 0.72016 (12) | 0.0584 (7) | |
| H3 | 0.1697 | 0.8312 | 0.7148 | 0.070* | |
| C4 | 0.3316 (3) | 0.6975 (2) | 0.68598 (10) | 0.0494 (5) | |
| C5 | 0.3793 (3) | 0.5805 (2) | 0.69774 (9) | 0.0431 (5) | |
| C6 | 0.2847 (3) | 0.5129 (2) | 0.73515 (9) | 0.0438 (5) | |
| C7 | 0.0990 (5) | 0.5179 (3) | 0.86177 (15) | 0.0929 (11) | |
| H7A | 0.2283 | 0.5034 | 0.8690 | 0.139* | |
| H7B | 0.0245 | 0.4650 | 0.8836 | 0.139* | |
| H7C | 0.0693 | 0.5997 | 0.8705 | 0.139* | |
| C8 | 0.3985 (4) | 0.7488 (2) | 0.63180 (11) | 0.0619 (7) | |
| H8A | 0.4784 | 0.8171 | 0.6391 | 0.074* | |
| H8B | 0.2912 | 0.7783 | 0.6120 | 0.074* | |
| C9 | 0.5055 (4) | 0.6599 (2) | 0.59495 (10) | 0.0550 (6) | |
| H9 | 0.4781 | 0.6798 | 0.5570 | 0.066* | |
| C10 | 0.4513 (3) | 0.5280 (2) | 0.60475 (9) | 0.0445 (5) | |
| C11 | 0.5026 (3) | 0.5014 (2) | 0.66483 (8) | 0.0405 (4) | |
| C12 | 0.7122 (3) | 0.5215 (2) | 0.67525 (9) | 0.0492 (5) | |
| H12A | 0.7375 | 0.5101 | 0.7136 | 0.059* | |
| H12B | 0.7827 | 0.4618 | 0.6553 | 0.059* | |
| C13 | 0.7765 (4) | 0.6444 (3) | 0.65865 (10) | 0.0615 (7) | |
| H13A | 0.7284 | 0.7040 | 0.6837 | 0.074* | |
| H13B | 0.9113 | 0.6482 | 0.6594 | 0.074* | |
| C14 | 0.5448 (4) | 0.4336 (2) | 0.56775 (9) | 0.0530 (6) | |
| H14A | 0.4972 | 0.4407 | 0.5310 | 0.064* | |
| H14B | 0.6782 | 0.4466 | 0.5668 | 0.064* | |
| C15 | 0.5020 (3) | 0.3077 (2) | 0.59042 (9) | 0.0464 (5) | |
| H15 | 0.6147 | 0.2777 | 0.6083 | 0.056* | |
| C16 | 0.3421 (3) | 0.31523 (19) | 0.63470 (9) | 0.0414 (5) | |
| C17 | 0.4396 (3) | 0.37595 (19) | 0.68281 (8) | 0.0413 (5) | |
| H17 | 0.5488 | 0.3285 | 0.6932 | 0.050* | |
| C18 | 0.1924 (3) | 0.3955 (2) | 0.61281 (9) | 0.0460 (5) | |
| H18 | 0.0696 | 0.3701 | 0.6096 | 0.055* | |
| C19 | 0.2453 (3) | 0.5040 (2) | 0.59850 (9) | 0.0476 (5) | |
| H19 | 0.1625 | 0.5615 | 0.5856 | 0.057* | |
| C20 | 0.3673 (4) | 0.1229 (2) | 0.67858 (11) | 0.0580 (6) | |
| H20A | 0.4882 | 0.1129 | 0.6627 | 0.087* | |
| H20B | 0.3058 | 0.0465 | 0.6803 | 0.087* | |
| H20C | 0.3802 | 0.1550 | 0.7145 | 0.087* | |
| C21 | 0.4457 (3) | 0.2176 (2) | 0.54757 (10) | 0.0524 (6) | |
| C22 | 0.4577 (6) | 0.0119 (3) | 0.52491 (12) | 0.0800 (9) | |
| H22A | 0.3286 | −0.0057 | 0.5309 | 0.120* | |
| H22B | 0.5310 | −0.0578 | 0.5331 | 0.120* | |
| H22C | 0.4760 | 0.0340 | 0.4876 | 0.120* | |
| C23 | 0.8136 (4) | 0.7260 (2) | 0.56914 (10) | 0.0583 (6) | |
| N1 | 0.7083 (4) | 0.6693 (2) | 0.60326 (9) | 0.0710 (7) | |
| N2 | 0.9105 (5) | 0.7735 (3) | 0.53969 (12) | 0.1007 (10) | |
| O1 | 0.0625 (3) | 0.4968 (2) | 0.80685 (10) | 0.0924 (8) | |
| O2 | 0.3187 (2) | 0.39121 (14) | 0.73017 (6) | 0.0487 (4) | |
| O3 | 0.2608 (2) | 0.20286 (14) | 0.64642 (7) | 0.0496 (4) | |
| O4 | 0.3500 (3) | 0.2385 (2) | 0.50871 (8) | 0.0753 (6) | |
| O5 | 0.5139 (3) | 0.10971 (16) | 0.55952 (7) | 0.0611 (5) |
| U11 | U22 | U33 | U12 | U13 | U23 | |
| C1 | 0.0440 (11) | 0.0639 (15) | 0.0594 (15) | −0.0158 (11) | 0.0118 (11) | −0.0196 (12) |
| C2 | 0.0411 (12) | 0.0655 (17) | 0.089 (2) | −0.0039 (12) | 0.0063 (13) | −0.0372 (15) |
| C3 | 0.0479 (13) | 0.0478 (13) | 0.0794 (18) | 0.0029 (11) | −0.0166 (13) | −0.0162 (12) |
| C4 | 0.0462 (12) | 0.0453 (12) | 0.0565 (14) | −0.0042 (10) | −0.0137 (11) | −0.0037 (10) |
| C5 | 0.0380 (10) | 0.0512 (12) | 0.0400 (11) | −0.0009 (9) | −0.0052 (9) | −0.0007 (9) |
| C6 | 0.0376 (10) | 0.0510 (12) | 0.0429 (11) | −0.0012 (9) | −0.0001 (9) | −0.0062 (9) |
| C7 | 0.076 (2) | 0.110 (3) | 0.093 (3) | −0.015 (2) | −0.0151 (18) | 0.037 (2) |
| C8 | 0.0750 (17) | 0.0485 (13) | 0.0622 (16) | −0.0068 (13) | −0.0176 (14) | 0.0088 (12) |
| C9 | 0.0606 (15) | 0.0632 (15) | 0.0413 (12) | −0.0127 (12) | −0.0101 (11) | 0.0129 (10) |
| C10 | 0.0458 (11) | 0.0529 (12) | 0.0347 (10) | −0.0025 (10) | −0.0048 (9) | 0.0069 (9) |
| C11 | 0.0374 (10) | 0.0496 (11) | 0.0346 (10) | 0.0006 (9) | −0.0008 (8) | 0.0036 (9) |
| C12 | 0.0375 (11) | 0.0722 (15) | 0.0379 (11) | −0.0018 (10) | −0.0014 (9) | 0.0052 (11) |
| C13 | 0.0485 (13) | 0.0891 (19) | 0.0469 (14) | −0.0188 (13) | −0.0052 (11) | 0.0121 (12) |
| C14 | 0.0539 (13) | 0.0704 (15) | 0.0348 (11) | −0.0025 (12) | 0.0042 (10) | 0.0017 (10) |
| C15 | 0.0399 (11) | 0.0609 (13) | 0.0384 (11) | 0.0064 (10) | 0.0002 (9) | −0.0008 (10) |
| C16 | 0.0379 (10) | 0.0469 (11) | 0.0395 (11) | 0.0033 (9) | 0.0016 (9) | 0.0026 (9) |
| C17 | 0.0388 (10) | 0.0502 (11) | 0.0348 (11) | 0.0079 (9) | 0.0018 (9) | 0.0037 (9) |
| C18 | 0.0358 (10) | 0.0554 (13) | 0.0467 (12) | 0.0034 (10) | −0.0052 (9) | −0.0014 (10) |
| C19 | 0.0465 (11) | 0.0509 (12) | 0.0454 (11) | 0.0058 (10) | −0.0129 (10) | 0.0016 (10) |
| C20 | 0.0634 (15) | 0.0523 (13) | 0.0582 (15) | 0.0050 (12) | 0.0007 (12) | 0.0119 (12) |
| C21 | 0.0518 (13) | 0.0645 (15) | 0.0408 (12) | 0.0066 (12) | 0.0021 (10) | −0.0039 (11) |
| C22 | 0.117 (3) | 0.0672 (17) | 0.0557 (16) | 0.0099 (19) | 0.0001 (17) | −0.0166 (14) |
| C23 | 0.0749 (16) | 0.0556 (14) | 0.0443 (13) | −0.0099 (13) | 0.0118 (12) | −0.0001 (11) |
| N1 | 0.0676 (14) | 0.0989 (17) | 0.0467 (12) | −0.0295 (13) | −0.0056 (10) | 0.0215 (12) |
| N2 | 0.101 (2) | 0.135 (3) | 0.0660 (18) | −0.026 (2) | 0.0247 (16) | 0.0189 (17) |
| O1 | 0.0946 (15) | 0.0935 (15) | 0.0891 (16) | −0.0483 (13) | 0.0573 (13) | −0.0418 (13) |
| O2 | 0.0554 (8) | 0.0505 (9) | 0.0403 (8) | 0.0008 (7) | 0.0127 (7) | 0.0014 (7) |
| O3 | 0.0454 (8) | 0.0485 (8) | 0.0548 (9) | 0.0022 (7) | 0.0009 (7) | 0.0038 (7) |
| O4 | 0.0877 (14) | 0.0788 (12) | 0.0596 (12) | 0.0128 (12) | −0.0285 (11) | −0.0099 (9) |
| O5 | 0.0748 (11) | 0.0627 (10) | 0.0459 (9) | 0.0161 (10) | −0.0023 (9) | −0.0078 (8) |
| C1—O1 | 1.376 (3) | C13—N1 | 1.476 (3) |
| C1—C6 | 1.381 (3) | C13—H13A | 0.97 |
| C1—C2 | 1.389 (4) | C13—H13B | 0.97 |
| C2—C3 | 1.382 (4) | C14—C15 | 1.541 (3) |
| C2—H2 | 0.93 | C14—H14A | 0.97 |
| C3—C4 | 1.388 (4) | C14—H14B | 0.97 |
| C3—H3 | 0.93 | C15—C21 | 1.512 (3) |
| C4—C5 | 1.379 (3) | C15—C16 | 1.587 (3) |
| C4—C8 | 1.530 (4) | C15—H15 | 0.98 |
| C5—C6 | 1.371 (3) | C16—O3 | 1.411 (3) |
| C5—C11 | 1.489 (3) | C16—C18 | 1.500 (3) |
| C6—O2 | 1.383 (3) | C16—C17 | 1.534 (3) |
| C7—O1 | 1.398 (4) | C17—O2 | 1.465 (2) |
| C7—H7A | 0.96 | C17—H17 | 0.98 |
| C7—H7B | 0.96 | C18—C19 | 1.315 (3) |
| C7—H7C | 0.96 | C18—H18 | 0.93 |
| C8—C9 | 1.548 (4) | C19—H19 | 0.93 |
| C8—H8A | 0.97 | C20—O3 | 1.417 (3) |
| C8—H8B | 0.97 | C20—H20A | 0.96 |
| C9—N1 | 1.476 (4) | C20—H20B | 0.96 |
| C9—C10 | 1.539 (3) | C20—H20C | 0.96 |
| C9—H9 | 0.98 | C21—O4 | 1.202 (3) |
| C10—C19 | 1.513 (3) | C21—O5 | 1.330 (3) |
| C10—C14 | 1.546 (3) | C22—O5 | 1.441 (3) |
| C10—C11 | 1.554 (3) | C22—H22A | 0.96 |
| C11—C17 | 1.534 (3) | C22—H22B | 0.96 |
| C11—C12 | 1.545 (3) | C22—H22C | 0.96 |
| C12—C13 | 1.502 (4) | C23—N2 | 1.137 (3) |
| C12—H12A | 0.97 | C23—N1 | 1.296 (3) |
| C12—H12B | 0.97 | ||
| O1—C1—C6 | 120.1 (2) | N1—C13—H13B | 110.0 |
| O1—C1—C2 | 122.9 (2) | C12—C13—H13B | 110.0 |
| C6—C1—C2 | 116.7 (2) | H13A—C13—H13B | 108.3 |
| C3—C2—C1 | 122.1 (2) | C15—C14—C10 | 108.61 (18) |
| C3—C2—H2 | 119.0 | C15—C14—H14A | 110.0 |
| C1—C2—H2 | 119.0 | C10—C14—H14A | 110.0 |
| C2—C3—C4 | 120.5 (2) | C15—C14—H14B | 110.0 |
| C2—C3—H3 | 119.8 | C10—C14—H14B | 110.0 |
| C4—C3—H3 | 119.7 | H14A—C14—H14B | 108.3 |
| C5—C4—C3 | 116.5 (2) | C21—C15—C14 | 113.87 (19) |
| C5—C4—C8 | 117.3 (2) | C21—C15—C16 | 108.75 (19) |
| C3—C4—C8 | 125.3 (2) | C14—C15—C16 | 110.19 (18) |
| C6—C5—C4 | 122.5 (2) | C21—C15—H15 | 107.9 |
| C6—C5—C11 | 109.66 (19) | C14—C15—H15 | 107.9 |
| C4—C5—C11 | 126.3 (2) | C16—C15—H15 | 107.9 |
| C5—C6—C1 | 120.6 (2) | O3—C16—C18 | 107.77 (17) |
| C5—C6—O2 | 113.00 (18) | O3—C16—C17 | 114.96 (17) |
| C1—C6—O2 | 126.1 (2) | C18—C16—C17 | 110.04 (17) |
| O1—C7—H7A | 109.5 | O3—C16—C15 | 113.17 (17) |
| O1—C7—H7B | 109.5 | C18—C16—C15 | 107.72 (18) |
| H7A—C7—H7B | 109.5 | C17—C16—C15 | 102.94 (16) |
| O1—C7—H7C | 109.5 | O2—C17—C16 | 113.33 (17) |
| H7A—C7—H7C | 109.5 | O2—C17—C11 | 107.43 (16) |
| H7B—C7—H7C | 109.5 | C16—C17—C11 | 108.24 (16) |
| C4—C8—C9 | 115.4 (2) | O2—C17—H17 | 109.3 |
| C4—C8—H8A | 108.4 | C16—C17—H17 | 109.3 |
| C9—C8—H8A | 108.4 | C11—C17—H17 | 109.3 |
| C4—C8—H8B | 108.4 | C19—C18—C16 | 115.9 (2) |
| C9—C8—H8B | 108.4 | C19—C18—H18 | 122.0 |
| H8A—C8—H8B | 107.5 | C16—C18—H18 | 122.0 |
| N1—C9—C10 | 107.2 (2) | C18—C19—C10 | 114.7 (2) |
| N1—C9—C8 | 111.4 (2) | C18—C19—H19 | 122.6 |
| C10—C9—C8 | 113.1 (2) | C10—C19—H19 | 122.6 |
| N1—C9—H9 | 108.3 | O3—C20—H20A | 109.5 |
| C10—C9—H9 | 108.3 | O3—C20—H20B | 109.5 |
| C8—C9—H9 | 108.3 | H20A—C20—H20B | 109.5 |
| C19—C10—C9 | 113.6 (2) | O3—C20—H20C | 109.5 |
| C19—C10—C14 | 104.20 (19) | H20A—C20—H20C | 109.5 |
| C9—C10—C14 | 116.56 (19) | H20B—C20—H20C | 109.5 |
| C19—C10—C11 | 107.17 (18) | O4—C21—O5 | 124.2 (2) |
| C9—C10—C11 | 105.77 (18) | O4—C21—C15 | 125.5 (2) |
| C14—C10—C11 | 109.19 (18) | O5—C21—C15 | 110.3 (2) |
| C5—C11—C17 | 101.88 (17) | O5—C22—H22A | 109.5 |
| C5—C11—C12 | 113.82 (19) | O5—C22—H22B | 109.5 |
| C17—C11—C12 | 111.83 (18) | H22A—C22—H22B | 109.5 |
| C5—C11—C10 | 105.35 (18) | O5—C22—H22C | 109.5 |
| C17—C11—C10 | 112.28 (18) | H22A—C22—H22C | 109.5 |
| C12—C11—C10 | 111.22 (18) | H22B—C22—H22C | 109.5 |
| C13—C12—C11 | 112.8 (2) | N2—C23—N1 | 177.9 (3) |
| C13—C12—H12A | 109.0 | C23—N1—C9 | 121.4 (2) |
| C11—C12—H12A | 109.0 | C23—N1—C13 | 119.8 (2) |
| C13—C12—H12B | 109.0 | C9—N1—C13 | 116.3 (2) |
| C11—C12—H12B | 109.0 | C1—O1—C7 | 116.9 (2) |
| H12A—C12—H12B | 107.8 | C6—O2—C17 | 106.83 (16) |
| N1—C13—C12 | 108.7 (2) | C16—O3—C20 | 116.63 (18) |
| N1—C13—H13A | 110.0 | C21—O5—C22 | 116.6 (2) |
| C12—C13—H13A | 110.0 | ||
| O1—C1—C2—C3 | −171.3 (3) | C10—C14—C15—C16 | 13.0 (2) |
| C6—C1—C2—C3 | 3.1 (4) | C21—C15—C16—O3 | 38.3 (2) |
| C1—C2—C3—C4 | −4.1 (4) | C14—C15—C16—O3 | 163.76 (18) |
| C2—C3—C4—C5 | −2.6 (3) | C21—C15—C16—C18 | −80.7 (2) |
| C2—C3—C4—C8 | 166.4 (2) | C14—C15—C16—C18 | 44.7 (2) |
| C3—C4—C5—C6 | 10.5 (3) | C21—C15—C16—C17 | 162.99 (18) |
| C8—C4—C5—C6 | −159.4 (2) | C14—C15—C16—C17 | −71.5 (2) |
| C3—C4—C5—C11 | 175.0 (2) | O3—C16—C17—O2 | −55.4 (2) |
| C8—C4—C5—C11 | 5.1 (3) | C18—C16—C17—O2 | 66.5 (2) |
| C4—C5—C6—C1 | −11.9 (3) | C15—C16—C17—O2 | −178.91 (16) |
| C11—C5—C6—C1 | −178.7 (2) | O3—C16—C17—C11 | −174.44 (16) |
| C4—C5—C6—O2 | 162.9 (2) | C18—C16—C17—C11 | −52.6 (2) |
| C11—C5—C6—O2 | −3.9 (2) | C15—C16—C17—C11 | 62.0 (2) |
| O1—C1—C6—C5 | 179.3 (2) | C5—C11—C17—O2 | −10.9 (2) |
| C2—C1—C6—C5 | 4.7 (3) | C12—C11—C17—O2 | 111.03 (19) |
| O1—C1—C6—O2 | 5.2 (4) | C10—C11—C17—O2 | −123.14 (18) |
| C2—C1—C6—O2 | −169.4 (2) | C5—C11—C17—C16 | 111.83 (18) |
| C5—C4—C8—C9 | 2.8 (3) | C12—C11—C17—C16 | −126.25 (19) |
| C3—C4—C8—C9 | −166.1 (2) | C10—C11—C17—C16 | −0.4 (2) |
| C4—C8—C9—N1 | −94.0 (3) | O3—C16—C18—C19 | −178.53 (19) |
| C4—C8—C9—C10 | 26.8 (3) | C17—C16—C18—C19 | 55.4 (3) |
| N1—C9—C10—C19 | 179.2 (2) | C15—C16—C18—C19 | −56.1 (3) |
| C8—C9—C10—C19 | 56.0 (3) | C16—C18—C19—C10 | 2.1 (3) |
| N1—C9—C10—C14 | −59.6 (3) | C9—C10—C19—C18 | −172.41 (19) |
| C8—C9—C10—C14 | 177.2 (2) | C14—C10—C19—C18 | 59.7 (3) |
| N1—C9—C10—C11 | 61.9 (2) | C11—C10—C19—C18 | −56.0 (3) |
| C8—C9—C10—C11 | −61.3 (2) | C14—C15—C21—O4 | −38.1 (3) |
| C6—C5—C11—C17 | 9.0 (2) | C16—C15—C21—O4 | 85.2 (3) |
| C4—C5—C11—C17 | −157.1 (2) | C14—C15—C21—O5 | 143.4 (2) |
| C6—C5—C11—C12 | −111.5 (2) | C16—C15—C21—O5 | −93.3 (2) |
| C4—C5—C11—C12 | 82.3 (3) | N2—C23—N1—C9 | −154 (9) |
| C6—C5—C11—C10 | 126.37 (19) | N2—C23—N1—C13 | 45 (9) |
| C4—C5—C11—C10 | −39.8 (3) | C10—C9—N1—C23 | 133.5 (3) |
| C19—C10—C11—C5 | −57.1 (2) | C8—C9—N1—C23 | −102.3 (3) |
| C9—C10—C11—C5 | 64.4 (2) | C10—C9—N1—C13 | −64.4 (3) |
| C14—C10—C11—C5 | −169.41 (18) | C8—C9—N1—C13 | 59.9 (3) |
| C19—C10—C11—C17 | 53.0 (2) | C12—C13—N1—C23 | −141.3 (3) |
| C9—C10—C11—C17 | 174.49 (18) | C12—C13—N1—C9 | 56.2 (3) |
| C14—C10—C11—C17 | −59.3 (2) | C6—C1—O1—C7 | 114.6 (3) |
| C19—C10—C11—C12 | 179.1 (2) | C2—C1—O1—C7 | −71.2 (4) |
| C9—C10—C11—C12 | −59.3 (2) | C5—C6—O2—C17 | −3.5 (2) |
| C14—C10—C11—C12 | 66.8 (2) | C1—C6—O2—C17 | 170.9 (2) |
| C5—C11—C12—C13 | −64.4 (3) | C16—C17—O2—C6 | −110.32 (19) |
| C17—C11—C12—C13 | −179.20 (18) | C11—C17—O2—C6 | 9.2 (2) |
| C10—C11—C12—C13 | 54.4 (3) | C18—C16—O3—C20 | −166.3 (2) |
| C11—C12—C13—N1 | −48.9 (3) | C17—C16—O3—C20 | −43.2 (2) |
| C19—C10—C14—C15 | −64.4 (2) | C15—C16—O3—C20 | 74.7 (2) |
| C9—C10—C14—C15 | 169.59 (19) | O4—C21—O5—C22 | −4.0 (4) |
| C11—C10—C14—C15 | 49.9 (2) | C15—C21—O5—C22 | 174.5 (2) |
| C10—C14—C15—C21 | 135.5 (2) |
| D—H···A | D—H | H···A | D···A | D—H···A |
| C20—H20A···O5 | 0.96 | 2.55 | 3.120 (3) | 118 |
| C3—H3···O1i | 0.93 | 2.54 | 3.399 (3) | 153 |
| C9—H9···N2ii | 0.98 | 2.49 | 3.467 (4) | 179 |
| Symmetry codes: (i) −x, y+1/2, −z+3/2; (ii) x−1/2, −y+3/2, −z+1. |
| D—H···A | D—H | H···A | D···A | D—H···A |
| C20—H20A···O5 | 0.96 | 2.55 | 3.120 (3) | 118 |
| C3—H3···O1i | 0.93 | 2.54 | 3.399 (3) | 153 |
| C9—H9···N2ii | 0.98 | 2.49 | 3.467 (4) | 179 |
| Symmetry codes: (i) −x, y+1/2, −z+3/2; (ii) x−1/2, −y+3/2, −z+1. |
The authors gratefully acknowledge financial support from the Scientific and Technical Research Council of Turkey (TUBITAK, project No. 107 T676). We also thank the Turkish Grain Board (TMO) for the supply of thebaine.
Bentley, K. W. & Hardy, D. G. (1967). J. Am. Chem. Soc. 89, 3267–3273.
Bernstein, J., Davis, R. E., Shimoni, L. & Chang, N.-L. (1995). Angew. Chem. Int. Ed. Engl. 34, 1555-1573.
Cremer, D. & Pople, J. A. (1975). J. Am. Chem. Soc. 97, 1354–1358.
Derrick, I., Coop, A., Al-Mousawi, S. M., Husbands, S. M. & Lewis, J. W. (2000). Tetrahedron Lett. 41, 7571–7576.
Etter, M. C. (1990). Acc. Chem. Res. 23, 120–126.
Farrugia, L. J. (1997). J. Appl. Cryst. 30, 565.
Farrugia, L. J. (1999). J. Appl. Cryst. 32, 837–838.
Hoskin, P. J. & Hanks, G. W. (1991). Drugs, 41, 326–338.
Lenz, G. R., Evans, S. M., Walters, D. E. & Hopfinger, A. J. (1986). Opiates, p. 65. London: Academic Press.
Liu, H., Zhong, B., Lui, C., Wu, B. & Gong, Z. (2005). Acta Chim. Slov. 52, 80–85.
Marton, J., Miklos, S., Hosztafi, S. & Makleit, S. (1995). Synth. Commun. 25, 829–848.
Odabaşoğlu, M., Yavuz, S., Pamir, Ö., Yıldırır, Y. & Büyükgüngör, O. (2009). Acta Cryst. E65, o864.
Parrish, D., Chen, W., Coop, A. & Deschamps, J. R. (2004). Acta Cryst. E60, o793–o794.
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122.
Stoe & Cie (2002). X-AREA and X-RED32. Stoe & Cie, Darmstadt, Germany.
Takemori, A. E., Hayashi, G. & Smits, S. E. (1972). Eur. J. Pharmacol. 20, 85–91.
Morphine alkaloids and semisynthetic derivatives are important drugs for the relief of severe pain. A wide variety of modifications of the well known alkaloids thebaine, codeine and morphine have been described. The Diels-Alder adducts of the thebaine are key intermediates in the synthesis of the potent opioid analgesics (Parrish et al., 2004). Diels-Alder reactions between thebaine and dienophiles predominantly give rise to 7α adducts, and the corresponding 7β adducts have received little attention due to their difficulty of preparation (Bentley & Hardy 1967; Marton et al., 1995; Derrick et al., 2000).
The nature of the substituent at the nitrogen atom in morphine alkaloids is a significant factor having both quantitative and qualitative influence on their pharmacological activity (Lenz et al., 1986). The synthesis and pharmacological activities of 6,14-endoethanomorphinan derivatives have been extensively studied. The typical examples of the pharmacological active compounds were reported in the literature such as buprenorphine (Hoskin & Hanks 1991), etorphine (Takemori et al., 1972) and thienorphine (Liu et al., 2005).
The overall view and atom-labelling of the molecule of (I) are displayed in Fig. 1. The five-membered ring [O2/C6/C5/C11/C17] adopts a twist conformation. Rings A (N1/C9/C10/C11/C12/C13), B(C4/C5/C11/C10/C9/C8), C(C10/C11/C17/C16/C18/C19) and D(C10/C14/C15/C16/C18/C19) are not planar, having total puckering amplitudes, QT, of 0.596 (3) Å, 0.582 (2) Å, 0.768 (2)Å and 0.823 (2) Å, respectively. Rings A, B, C and D adopt chair, envelope, distorted boat and distorted boat conformations, respectively [for ring A: φ = 96 (2)° and θ = 9.4 (3)°; for ring B: φ = 350.1 (3)° and θ = 125.3 (3)°; for ring C: φ = 179.0 (2)° and θ = 90.8 (2)°; for ring D: φ = 6.2 (2)° and θ = 85.8 (1)°; Cremer & Pople, 1975). An intramolecular C20—H20A···O5 hydrogen bond is observed (Fig. 1).
The crystal packing is stabilized by intermolecular C9—H9···N2 and C3—H3···O1 hydrogen bonds (Table 1). As shown in Fig. 2 and Fig. 3, each of these hydrogen bonds forms a C(5) chain (Bernstein et al., 1995; Etter, 1990) and together they form a three-dimensional network.