organic compounds
(3S,4R,4aS,7aR,12bS)-3-Cyclopropylmethyl-4a,9-dihydroxy-3-methyl-7-oxo-2,3,4,4a,5,6,7,7a-octahydro-1H-4,12-methano-1-benzofuro[3,2-e]isoquinolin-3-ium 2,2,2-trifluoroacetate methanol solvate
aBeijing Institute of Pharmacology and Toxicology, Beijing, 100850, People's Republic of China
*Correspondence e-mail: hapwave@yahoo.cn
In the title compound, C21H26F3NO6+·CF3COO−·CH3OH or S-MNTX·CF3COO−·CH3OH (MNTX = methylnaltrexone), the conformation of the polycyclic backbone of the noroxymorphone skeleton can be simplified in terms of the angles between the least-squares planes of these rings. The dihedral angle between the cyclohexene and piperidine rings is 84.5 (6)°, while the dihedral angles between the planes of cyclohexane ring and the benzene, cyclohexene and piperidine rings, respectively, are 85.8 (6),80.0 (7) and 10.3 (7)°. In the crystal, molecules are linked by O—H⋯O hydrogen bonds. The trifluoroacetate F atoms are disordered in a 0.710 (14):0.710 (14) ratio. The absolute stereochemistry was inferred from the use of (4R,4aS,7aR,12bS)-3-(cyclopropylmethyl)-4a,9-dihydroxy-2,3,4,4a,5,6-hexahydro-1H-4,12-methanobenzofuro[3,2-e]isoquinolin-7(7aH)-one as one of the starting materials.
Related literature
For general background to methylnaltrexone (MNTX) bromide and R-MNTX, see: Crabtree (1984); Doshan & Perez (2006). For the bioactivity and synthesis of S-MNTX, see: Wagoner et al. (2006).
Experimental
Crystal data
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Refinement
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Data collection: CrystalClear (Rigaku/MSC, 2005); cell CrystalClear; data reduction: CrystalClear; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: XCIF in SHELXTL.
Supporting information
https://doi.org/10.1107/S1600536810041164/hg2721sup1.cif
contains datablocks I, New_Global_Publ_Block. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536810041164/hg2721Isup2.hkl
A solution of(4R,4aS,7aR,12bS)-3-(cyclopropylmethyl)-4a,9-dihydroxy- 2,3,4,4a,5,6-hexahydro-1H-4,12-methanobenzofuro[3,2-e]isoquinolin-7(7aH) -one(10 g, 29.4 mmol) and MeI(34 g) in 1-methyl-2-pyrrolidinone(100 mL) was stirred at 140 K for 10 h. The solvent was removed under pressure and the residue was purified by preparative reverse phase column (Waters C18)
using water-methanol-TFA(74.8:25:0.2) as Two products were isolated. Colorless single crystals of the title compound were obtained from the methanol-water solution.All H atoms were placed in calculated positions with C—H distances ranging from 0.95 to 1.00 Å and included in the
in riding-model approximation with Uiso = 1.2Ueq (1.5Ueq for methyl) of the In the absence of significant effects, Friedel pairs were merged; the was inferred from the synthesis.Methylnaltrexone (MNTX) is a quaternary derivative of the pure opioid antagonist naltrexone, which is a chiral molecule and the quaternary nitrogen can be in R or S configuration. R-MNTX bromide, as a peripheral opioid antagonist, has been used in clinic to refrain from addiction caused by meconium drugs. However, it has been found surprisingly that S-MNTX exhibited opioid agonist activity (Wagoner et al., 2006). In this paper, we report the synthesis and
of the title compound 2,2,2-trifluoroacetate of S-MNTX.In the
of the title compound (Fig.1), C24H30F3NO7, the conformation of the polycyclic backbone of the noroxymorphone skeleton can be simplified in terms of the angles between the least-squares planes of these rings. Ring A is defined by atoms C1—C6, ring B by atoms C4/C5/C11/C12/C15/C16, ring C by atoms C7—C12, and ring D by atoms C11—C14/ C16/N1. The angle between the rings B and D is 84.5 (6)°. The angle between the planes of ring C and ring A/B/D is respectively 85.8 (6)/80.0 (7)/10.3 (7)°. The structure displays O—H···O hydrogen bonding (Table 1, Fig. 2). The structure exhibits disorder.For general background to methylnaltrexone (MNTX) bromide and R-MNTX, see: Crabtree (1984); Doshan et al. (2006). For the bioactivity and synthesis of S-MNTX, see: Wagoner et al. (2006).
Data collection: CrystalClear (Rigaku/MSC, 2005); cell
CrystalClear (Rigaku/MSC, 2005); data reduction: CrystalClear (Rigaku/MSC, 2005); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXL97 (Sheldrick, 2008); software used to prepare material for publication: XCIF in SHELXTL (Sheldrick, 2008).Fig. 1. The molecular structure of the title compound, showing 50% displacement ellipsoids. | |
Fig. 2. A partial packing diagram of title compound. |
C21H26NO4+·C2F3O2−·CH4O | F(000) = 1056 |
Mr = 501.49 | Dx = 1.436 Mg m−3 |
Orthorhombic, P212121 | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: P 2ac 2ab | Cell parameters from 8884 reflections |
a = 9.404 (2) Å | θ = 1.6–27.9° |
b = 12.526 (3) Å | µ = 0.12 mm−1 |
c = 19.693 (5) Å | T = 113 K |
V = 2319.8 (10) Å3 | Prism, colorless |
Z = 4 | 0.20 × 0.18 × 0.14 mm |
Rigaku Saturn CCD area detector diffractometer | 2336 independent reflections |
Radiation source: fine-focus sealed tube | 2261 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.030 |
Detector resolution: 14.63 pixels mm-1 | θmax = 25.0°, θmin = 1.9° |
ω and φ scans | h = −11→9 |
Absorption correction: multi-scan CrystalClear (Rigaku/MSC, 2005) | k = −14→13 |
Tmin = 0.976, Tmax = 0.983 | l = −23→23 |
16033 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)] = 0.032 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.079 | H-atom parameters constrained |
S = 1.07 | w = 1/[σ2(Fo2) + (0.051P)2 + 0.2916P] where P = (Fo2 + 2Fc2)/3 |
2336 reflections | (Δ/σ)max < 0.001 |
349 parameters | Δρmax = 0.22 e Å−3 |
66 restraints | Δρmin = −0.19 e Å−3 |
C21H26NO4+·C2F3O2−·CH4O | V = 2319.8 (10) Å3 |
Mr = 501.49 | Z = 4 |
Orthorhombic, P212121 | Mo Kα radiation |
a = 9.404 (2) Å | µ = 0.12 mm−1 |
b = 12.526 (3) Å | T = 113 K |
c = 19.693 (5) Å | 0.20 × 0.18 × 0.14 mm |
Rigaku Saturn CCD area detector diffractometer | 2336 independent reflections |
Absorption correction: multi-scan CrystalClear (Rigaku/MSC, 2005) | 2261 reflections with I > 2σ(I) |
Tmin = 0.976, Tmax = 0.983 | Rint = 0.030 |
16033 measured reflections |
R[F2 > 2σ(F2)] = 0.032 | 66 restraints |
wR(F2) = 0.079 | H-atom parameters constrained |
S = 1.07 | Δρmax = 0.22 e Å−3 |
2336 reflections | Δρmin = −0.19 e Å−3 |
349 parameters |
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. Mo Ka measured Friedel data cannot be used to determine absolute structure in a light atom study. |
x | y | z | Uiso*/Ueq | Occ. (<1) | |
O1 | 1.33431 (18) | 0.71301 (14) | 0.23591 (8) | 0.0281 (4) | |
H1 | 1.3709 | 0.7168 | 0.1971 | 0.042* | |
O2 | 1.14964 (17) | 0.71503 (13) | 0.35444 (7) | 0.0233 (4) | |
O3 | 1.0961 (2) | 0.92317 (15) | 0.35475 (11) | 0.0430 (5) | |
O4 | 0.69083 (18) | 0.71936 (12) | 0.41814 (7) | 0.0239 (4) | |
H4 | 0.6411 | 0.7735 | 0.4265 | 0.036* | |
N1 | 0.6598 (2) | 0.54016 (14) | 0.31973 (9) | 0.0224 (4) | |
C1 | 1.1913 (3) | 0.70077 (18) | 0.22998 (12) | 0.0238 (5) | |
C2 | 1.1185 (3) | 0.69242 (18) | 0.16778 (12) | 0.0258 (6) | |
H2 | 1.1719 | 0.6938 | 0.1268 | 0.031* | |
C3 | 0.9710 (3) | 0.68222 (18) | 0.16386 (12) | 0.0255 (5) | |
H3 | 0.9263 | 0.6788 | 0.1206 | 0.031* | |
C4 | 0.8880 (3) | 0.67693 (18) | 0.22272 (12) | 0.0230 (5) | |
C5 | 0.9618 (3) | 0.68362 (17) | 0.28299 (11) | 0.0215 (5) | |
C6 | 1.1068 (3) | 0.69866 (18) | 0.28753 (11) | 0.0219 (5) | |
C7 | 1.0192 (3) | 0.74854 (18) | 0.38813 (11) | 0.0228 (5) | |
H7 | 1.0236 | 0.7337 | 0.4380 | 0.027* | |
C8 | 0.9985 (3) | 0.86850 (19) | 0.37436 (12) | 0.0271 (6) | |
C9 | 0.8483 (3) | 0.90873 (18) | 0.38089 (13) | 0.0286 (6) | |
H9A | 0.8448 | 0.9859 | 0.3702 | 0.034* | |
H9B | 0.8144 | 0.8987 | 0.4281 | 0.034* | |
C10 | 0.7521 (3) | 0.84654 (17) | 0.33149 (12) | 0.0244 (5) | |
H10A | 0.6544 | 0.8759 | 0.3329 | 0.029* | |
H10B | 0.7887 | 0.8539 | 0.2846 | 0.029* | |
C11 | 0.7500 (3) | 0.72831 (18) | 0.35199 (11) | 0.0211 (5) | |
C12 | 0.9008 (3) | 0.68246 (18) | 0.35386 (11) | 0.0211 (5) | |
C13 | 0.8942 (3) | 0.56643 (18) | 0.38041 (12) | 0.0222 (5) | |
H13A | 0.9918 | 0.5375 | 0.3844 | 0.027* | |
H13B | 0.8503 | 0.5656 | 0.4261 | 0.027* | |
C14 | 0.8082 (3) | 0.49697 (17) | 0.33281 (12) | 0.0240 (5) | |
H14A | 0.8004 | 0.4244 | 0.3525 | 0.029* | |
H14B | 0.8592 | 0.4909 | 0.2890 | 0.029* | |
C15 | 0.7269 (3) | 0.6745 (2) | 0.22605 (12) | 0.0258 (6) | |
H15A | 0.6921 | 0.6153 | 0.1971 | 0.031* | |
H15B | 0.6896 | 0.7419 | 0.2069 | 0.031* | |
C16 | 0.6658 (3) | 0.65996 (17) | 0.29849 (11) | 0.0225 (5) | |
H16 | 0.5658 | 0.6871 | 0.2978 | 0.027* | |
C17 | 0.5940 (3) | 0.4752 (2) | 0.26332 (12) | 0.0293 (6) | |
H17A | 0.6626 | 0.4674 | 0.2262 | 0.044* | |
H17B | 0.5087 | 0.5115 | 0.2465 | 0.044* | |
H17C | 0.5681 | 0.4045 | 0.2806 | 0.044* | |
C18 | 0.5687 (3) | 0.52023 (18) | 0.38352 (12) | 0.0238 (5) | |
H18A | 0.5718 | 0.4431 | 0.3944 | 0.029* | |
H18B | 0.6118 | 0.5592 | 0.4221 | 0.029* | |
C19 | 0.4160 (3) | 0.55373 (18) | 0.37701 (12) | 0.0239 (5) | |
H19 | 0.3997 | 0.6289 | 0.3618 | 0.029* | |
C20 | 0.3038 (3) | 0.4746 (2) | 0.35699 (13) | 0.0328 (6) | |
H20A | 0.2231 | 0.5007 | 0.3293 | 0.039* | |
H20B | 0.3345 | 0.4007 | 0.3468 | 0.039* | |
C21 | 0.3133 (3) | 0.51176 (19) | 0.42924 (12) | 0.0307 (6) | |
H21A | 0.3500 | 0.4608 | 0.4634 | 0.037* | |
H21B | 0.2386 | 0.5608 | 0.4460 | 0.037* | |
F1 | 0.4670 (15) | 0.2811 (8) | 0.5019 (7) | 0.042 (3) | 0.290 (14) |
F2 | 0.475 (2) | 0.1198 (14) | 0.5336 (8) | 0.066 (4) | 0.290 (14) |
F3 | 0.3034 (9) | 0.1836 (19) | 0.4686 (7) | 0.089 (4) | 0.290 (14) |
F1' | 0.4075 (11) | 0.2763 (4) | 0.4989 (4) | 0.083 (2) | 0.710 (14) |
F2' | 0.5213 (9) | 0.1381 (6) | 0.5325 (3) | 0.0609 (17) | 0.710 (14) |
F3' | 0.3205 (5) | 0.1191 (5) | 0.4841 (2) | 0.0727 (15) | 0.710 (14) |
O5 | 0.5400 (2) | 0.24675 (13) | 0.38094 (8) | 0.0294 (4) | |
O6 | 0.5533 (2) | 0.07136 (14) | 0.40010 (9) | 0.0396 (5) | |
C22 | 0.5196 (3) | 0.16372 (19) | 0.41422 (11) | 0.0256 (5) | |
C23 | 0.4420 (4) | 0.1785 (2) | 0.48217 (14) | 0.0434 (8) | |
O7 | 0.4835 (2) | 0.37757 (13) | 0.04273 (8) | 0.0277 (4) | |
H7A | 0.4593 | 0.4383 | 0.0566 | 0.042* | |
C24 | 0.6210 (3) | 0.3522 (2) | 0.06831 (13) | 0.0371 (7) | |
H24A | 0.6853 | 0.4126 | 0.0606 | 0.056* | |
H24B | 0.6577 | 0.2890 | 0.0449 | 0.056* | |
H24C | 0.6146 | 0.3377 | 0.1171 | 0.056* |
U11 | U22 | U33 | U12 | U13 | U23 | |
O1 | 0.0234 (10) | 0.0354 (9) | 0.0255 (8) | −0.0008 (8) | 0.0021 (8) | 0.0017 (8) |
O2 | 0.0218 (9) | 0.0265 (9) | 0.0216 (7) | 0.0015 (7) | −0.0026 (7) | 0.0008 (7) |
O3 | 0.0314 (11) | 0.0279 (10) | 0.0698 (14) | −0.0053 (9) | 0.0018 (11) | 0.0055 (9) |
O4 | 0.0282 (10) | 0.0202 (8) | 0.0232 (7) | 0.0036 (7) | 0.0025 (7) | 0.0021 (6) |
N1 | 0.0229 (11) | 0.0168 (9) | 0.0277 (9) | 0.0008 (8) | −0.0040 (9) | −0.0001 (8) |
C1 | 0.0260 (14) | 0.0194 (11) | 0.0261 (12) | 0.0008 (10) | −0.0017 (11) | 0.0020 (9) |
C2 | 0.0320 (15) | 0.0229 (12) | 0.0226 (11) | 0.0019 (11) | 0.0019 (11) | 0.0003 (9) |
C3 | 0.0309 (15) | 0.0247 (12) | 0.0209 (11) | 0.0000 (11) | −0.0041 (11) | 0.0008 (9) |
C4 | 0.0256 (14) | 0.0199 (11) | 0.0235 (11) | −0.0009 (10) | −0.0051 (10) | 0.0022 (10) |
C5 | 0.0248 (13) | 0.0171 (11) | 0.0227 (11) | 0.0026 (9) | −0.0011 (10) | 0.0007 (9) |
C6 | 0.0253 (13) | 0.0186 (11) | 0.0218 (11) | 0.0008 (10) | −0.0042 (10) | 0.0020 (9) |
C7 | 0.0249 (13) | 0.0220 (12) | 0.0217 (10) | 0.0016 (10) | −0.0003 (10) | 0.0008 (9) |
C8 | 0.0302 (15) | 0.0212 (12) | 0.0300 (12) | −0.0018 (11) | −0.0025 (11) | −0.0005 (10) |
C9 | 0.0313 (14) | 0.0187 (11) | 0.0358 (12) | 0.0012 (10) | 0.0042 (12) | −0.0008 (10) |
C10 | 0.0246 (13) | 0.0193 (11) | 0.0293 (12) | 0.0046 (10) | 0.0027 (11) | 0.0033 (9) |
C11 | 0.0233 (12) | 0.0194 (11) | 0.0207 (11) | 0.0005 (10) | −0.0003 (10) | 0.0027 (9) |
C12 | 0.0237 (13) | 0.0189 (11) | 0.0206 (10) | −0.0001 (10) | −0.0029 (10) | 0.0015 (9) |
C13 | 0.0219 (13) | 0.0198 (11) | 0.0248 (11) | 0.0031 (10) | −0.0021 (10) | 0.0041 (9) |
C14 | 0.0223 (13) | 0.0183 (11) | 0.0312 (12) | 0.0040 (10) | −0.0014 (10) | 0.0018 (10) |
C15 | 0.0275 (14) | 0.0269 (12) | 0.0230 (12) | 0.0003 (10) | −0.0062 (10) | 0.0033 (10) |
C16 | 0.0228 (14) | 0.0184 (11) | 0.0263 (11) | 0.0027 (10) | −0.0034 (11) | 0.0045 (9) |
C17 | 0.0321 (15) | 0.0276 (12) | 0.0283 (12) | −0.0040 (12) | −0.0054 (11) | −0.0035 (10) |
C18 | 0.0257 (14) | 0.0180 (11) | 0.0276 (11) | −0.0012 (10) | −0.0019 (10) | 0.0026 (9) |
C19 | 0.0256 (14) | 0.0179 (11) | 0.0283 (12) | −0.0001 (10) | −0.0005 (11) | 0.0012 (10) |
C20 | 0.0259 (14) | 0.0303 (13) | 0.0423 (14) | 0.0000 (12) | −0.0022 (12) | −0.0062 (11) |
C21 | 0.0289 (15) | 0.0276 (13) | 0.0356 (13) | 0.0007 (11) | 0.0013 (12) | 0.0049 (10) |
F1 | 0.074 (7) | 0.034 (4) | 0.018 (3) | 0.021 (4) | 0.007 (4) | −0.009 (3) |
F2 | 0.113 (9) | 0.032 (5) | 0.052 (5) | −0.002 (6) | 0.045 (5) | 0.027 (4) |
F3 | 0.050 (5) | 0.135 (9) | 0.081 (6) | 0.003 (6) | 0.019 (4) | −0.017 (6) |
F1' | 0.148 (6) | 0.048 (2) | 0.054 (3) | 0.054 (3) | 0.053 (4) | 0.0154 (19) |
F2' | 0.111 (5) | 0.048 (3) | 0.0238 (17) | 0.001 (3) | 0.002 (2) | 0.0139 (14) |
F3' | 0.056 (2) | 0.091 (3) | 0.071 (2) | −0.001 (2) | 0.0386 (18) | 0.004 (2) |
O5 | 0.0351 (10) | 0.0234 (9) | 0.0296 (8) | 0.0029 (8) | 0.0043 (8) | 0.0007 (7) |
O6 | 0.0551 (13) | 0.0242 (9) | 0.0396 (10) | 0.0061 (9) | 0.0149 (10) | 0.0008 (8) |
C22 | 0.0264 (14) | 0.0245 (12) | 0.0260 (12) | 0.0028 (11) | −0.0020 (11) | −0.0010 (10) |
C23 | 0.060 (2) | 0.0361 (16) | 0.0343 (15) | 0.0108 (15) | 0.0087 (15) | −0.0001 (12) |
O7 | 0.0292 (10) | 0.0231 (8) | 0.0308 (9) | −0.0009 (8) | −0.0008 (8) | −0.0004 (7) |
C24 | 0.0328 (16) | 0.0426 (16) | 0.0361 (14) | 0.0019 (13) | −0.0040 (13) | 0.0039 (12) |
O1—C1 | 1.359 (3) | C13—H13B | 0.9900 |
O1—H1 | 0.8400 | C14—H14A | 0.9900 |
O2—C6 | 1.393 (3) | C14—H14B | 0.9900 |
O2—C7 | 1.456 (3) | C15—C16 | 1.549 (3) |
O3—C8 | 1.209 (3) | C15—H15A | 0.9900 |
O4—C11 | 1.421 (3) | C15—H15B | 0.9900 |
O4—H4 | 0.8400 | C16—H16 | 1.0000 |
N1—C17 | 1.510 (3) | C17—H17A | 0.9800 |
N1—C14 | 1.519 (3) | C17—H17B | 0.9800 |
N1—C18 | 1.541 (3) | C17—H17C | 0.9800 |
N1—C16 | 1.559 (3) | C18—C19 | 1.501 (3) |
C1—C6 | 1.384 (3) | C18—H18A | 0.9900 |
C1—C2 | 1.407 (3) | C18—H18B | 0.9900 |
C2—C3 | 1.395 (4) | C19—C20 | 1.501 (3) |
C2—H2 | 0.9500 | C19—C21 | 1.506 (3) |
C3—C4 | 1.399 (3) | C19—H19 | 1.0000 |
C3—H3 | 0.9500 | C20—C21 | 1.500 (4) |
C4—C5 | 1.378 (3) | C20—H20A | 0.9900 |
C4—C15 | 1.517 (4) | C20—H20B | 0.9900 |
C5—C6 | 1.380 (4) | C21—H21A | 0.9900 |
C5—C12 | 1.509 (3) | C21—H21B | 0.9900 |
C7—C8 | 1.539 (3) | F1—C23 | 1.363 (9) |
C7—C12 | 1.543 (3) | F2—C23 | 1.290 (10) |
C7—H7 | 1.0000 | F3—C23 | 1.332 (8) |
C8—C9 | 1.505 (4) | F1'—C23 | 1.309 (6) |
C9—C10 | 1.540 (3) | F2'—C23 | 1.340 (5) |
C9—H9A | 0.9900 | F3'—C23 | 1.364 (5) |
C9—H9B | 0.9900 | O5—C22 | 1.244 (3) |
C10—C11 | 1.535 (3) | O6—C22 | 1.231 (3) |
C10—H10A | 0.9900 | C22—C23 | 1.536 (4) |
C10—H10B | 0.9900 | O7—C24 | 1.423 (3) |
C11—C12 | 1.530 (3) | O7—H7A | 0.8400 |
C11—C16 | 1.572 (3) | C24—H24A | 0.9800 |
C12—C13 | 1.546 (3) | C24—H24B | 0.9800 |
C13—C14 | 1.513 (3) | C24—H24C | 0.9800 |
C13—H13A | 0.9900 | ||
C1—O1—H1 | 109.5 | C4—C15—H15A | 108.7 |
C6—O2—C7 | 103.31 (17) | C16—C15—H15A | 108.7 |
C11—O4—H4 | 109.5 | C4—C15—H15B | 108.7 |
C17—N1—C14 | 108.01 (18) | C16—C15—H15B | 108.7 |
C17—N1—C18 | 106.54 (18) | H15A—C15—H15B | 107.6 |
C14—N1—C18 | 108.35 (16) | C15—C16—N1 | 111.92 (18) |
C17—N1—C16 | 109.65 (17) | C15—C16—C11 | 111.50 (19) |
C14—N1—C16 | 110.83 (18) | N1—C16—C11 | 111.26 (17) |
C18—N1—C16 | 113.25 (17) | C15—C16—H16 | 107.3 |
O1—C1—C6 | 120.0 (2) | N1—C16—H16 | 107.3 |
O1—C1—C2 | 124.4 (2) | C11—C16—H16 | 107.3 |
C6—C1—C2 | 115.6 (2) | N1—C17—H17A | 109.5 |
C3—C2—C1 | 122.6 (2) | N1—C17—H17B | 109.5 |
C3—C2—H2 | 118.7 | H17A—C17—H17B | 109.5 |
C1—C2—H2 | 118.7 | N1—C17—H17C | 109.5 |
C2—C3—C4 | 120.9 (2) | H17A—C17—H17C | 109.5 |
C2—C3—H3 | 119.6 | H17B—C17—H17C | 109.5 |
C4—C3—H3 | 119.6 | C19—C18—N1 | 114.64 (19) |
C5—C4—C3 | 115.4 (2) | C19—C18—H18A | 108.6 |
C5—C4—C15 | 117.9 (2) | N1—C18—H18A | 108.6 |
C3—C4—C15 | 126.5 (2) | C19—C18—H18B | 108.6 |
C4—C5—C6 | 124.2 (2) | N1—C18—H18B | 108.6 |
C4—C5—C12 | 127.2 (2) | H18A—C18—H18B | 107.6 |
C6—C5—C12 | 108.5 (2) | C20—C19—C18 | 120.7 (2) |
C5—C6—C1 | 121.1 (2) | C20—C19—C21 | 59.85 (16) |
C5—C6—O2 | 111.5 (2) | C18—C19—C21 | 117.2 (2) |
C1—C6—O2 | 127.3 (2) | C20—C19—H19 | 115.8 |
O2—C7—C8 | 107.92 (18) | C18—C19—H19 | 115.8 |
O2—C7—C12 | 104.70 (17) | C21—C19—H19 | 115.8 |
C8—C7—C12 | 110.80 (19) | C21—C20—C19 | 60.24 (16) |
O2—C7—H7 | 111.1 | C21—C20—H20A | 117.7 |
C8—C7—H7 | 111.1 | C19—C20—H20A | 117.7 |
C12—C7—H7 | 111.1 | C21—C20—H20B | 117.7 |
O3—C8—C9 | 123.4 (2) | C19—C20—H20B | 117.7 |
O3—C8—C7 | 120.9 (2) | H20A—C20—H20B | 114.9 |
C9—C8—C7 | 115.5 (2) | C20—C21—C19 | 59.91 (17) |
C8—C9—C10 | 109.13 (19) | C20—C21—H21A | 117.8 |
C8—C9—H9A | 109.9 | C19—C21—H21A | 117.8 |
C10—C9—H9A | 109.9 | C20—C21—H21B | 117.8 |
C8—C9—H9B | 109.9 | C19—C21—H21B | 117.8 |
C10—C9—H9B | 109.9 | H21A—C21—H21B | 114.9 |
H9A—C9—H9B | 108.3 | O6—C22—O5 | 128.8 (2) |
C11—C10—C9 | 109.23 (19) | O6—C22—C23 | 115.6 (2) |
C11—C10—H10A | 109.8 | O5—C22—C23 | 115.5 (2) |
C9—C10—H10A | 109.8 | F2—C23—F1' | 113.3 (10) |
C11—C10—H10B | 109.8 | F2—C23—F3 | 114.8 (10) |
C9—C10—H10B | 109.8 | F1'—C23—F3 | 76.3 (7) |
H10A—C10—H10B | 108.3 | F2—C23—F2' | 21.5 (8) |
O4—C11—C12 | 108.15 (18) | F1'—C23—F2' | 107.8 (5) |
O4—C11—C10 | 108.80 (18) | F3—C23—F2' | 135.3 (8) |
C12—C11—C10 | 110.9 (2) | F2—C23—F1 | 105.8 (11) |
O4—C11—C16 | 111.95 (18) | F1'—C23—F1 | 24.3 (6) |
C12—C11—C16 | 106.19 (18) | F3—C23—F1 | 100.4 (9) |
C10—C11—C16 | 110.83 (18) | F2'—C23—F1 | 92.8 (7) |
C5—C12—C11 | 109.05 (19) | F2—C23—F3' | 82.5 (8) |
C5—C12—C7 | 97.19 (19) | F1'—C23—F3' | 107.2 (4) |
C11—C12—C7 | 118.55 (19) | F3—C23—F3' | 38.0 (8) |
C5—C12—C13 | 109.71 (18) | F2'—C23—F3' | 103.9 (4) |
C11—C12—C13 | 108.87 (19) | F1—C23—F3' | 130.6 (6) |
C7—C12—C13 | 112.68 (19) | F2—C23—C22 | 120.1 (9) |
C14—C13—C12 | 110.65 (19) | F1'—C23—C22 | 116.7 (4) |
C14—C13—H13A | 109.5 | F3—C23—C22 | 107.3 (5) |
C12—C13—H13A | 109.5 | F2'—C23—C22 | 109.5 (4) |
C14—C13—H13B | 109.5 | F1—C23—C22 | 106.3 (7) |
C12—C13—H13B | 109.5 | F3'—C23—C22 | 110.9 (3) |
H13A—C13—H13B | 108.1 | C24—O7—H7A | 109.5 |
C13—C14—N1 | 113.03 (18) | O7—C24—H24A | 109.5 |
C13—C14—H14A | 109.0 | O7—C24—H24B | 109.5 |
N1—C14—H14A | 109.0 | H24A—C24—H24B | 109.5 |
C13—C14—H14B | 109.0 | O7—C24—H24C | 109.5 |
N1—C14—H14B | 109.0 | H24A—C24—H24C | 109.5 |
H14A—C14—H14B | 107.8 | H24B—C24—H24C | 109.5 |
C4—C15—C16 | 114.4 (2) | ||
O1—C1—C2—C3 | −178.6 (2) | C8—C7—C12—C5 | 79.5 (2) |
C6—C1—C2—C3 | −0.2 (3) | O2—C7—C12—C11 | −152.89 (18) |
C1—C2—C3—C4 | −1.7 (4) | C8—C7—C12—C11 | −36.8 (3) |
C2—C3—C4—C5 | 0.7 (3) | O2—C7—C12—C13 | 78.3 (2) |
C2—C3—C4—C15 | 175.0 (2) | C8—C7—C12—C13 | −165.6 (2) |
C3—C4—C5—C6 | 2.4 (3) | C5—C12—C13—C14 | −56.7 (3) |
C15—C4—C5—C6 | −172.4 (2) | C11—C12—C13—C14 | 62.5 (2) |
C3—C4—C5—C12 | 178.7 (2) | C7—C12—C13—C14 | −163.8 (2) |
C15—C4—C5—C12 | 3.9 (4) | C12—C13—C14—N1 | −55.1 (2) |
C4—C5—C6—C1 | −4.6 (4) | C17—N1—C14—C13 | 170.77 (19) |
C12—C5—C6—C1 | 178.6 (2) | C18—N1—C14—C13 | −74.2 (2) |
C4—C5—C6—O2 | 172.8 (2) | C16—N1—C14—C13 | 50.6 (2) |
C12—C5—C6—O2 | −4.0 (3) | C5—C4—C15—C16 | −10.2 (3) |
O1—C1—C6—C5 | −178.3 (2) | C3—C4—C15—C16 | 175.7 (2) |
C2—C1—C6—C5 | 3.3 (3) | C4—C15—C16—N1 | −84.1 (3) |
O1—C1—C6—O2 | 4.7 (4) | C4—C15—C16—C11 | 41.3 (3) |
C2—C1—C6—O2 | −173.7 (2) | C17—N1—C16—C15 | −47.7 (3) |
C7—O2—C6—C5 | −20.5 (2) | C14—N1—C16—C15 | 71.5 (2) |
C7—O2—C6—C1 | 156.8 (2) | C18—N1—C16—C15 | −166.53 (19) |
C6—O2—C7—C8 | −81.9 (2) | C17—N1—C16—C11 | −173.2 (2) |
C6—O2—C7—C12 | 36.2 (2) | C14—N1—C16—C11 | −54.0 (2) |
O2—C7—C8—O3 | −17.3 (3) | C18—N1—C16—C11 | 68.0 (3) |
C12—C7—C8—O3 | −131.4 (2) | O4—C11—C16—C15 | 177.34 (18) |
O2—C7—C8—C9 | 157.47 (19) | C12—C11—C16—C15 | −64.8 (2) |
C12—C7—C8—C9 | 43.4 (3) | C10—C11—C16—C15 | 55.7 (3) |
O3—C8—C9—C10 | 116.4 (3) | O4—C11—C16—N1 | −56.9 (2) |
C7—C8—C9—C10 | −58.2 (3) | C12—C11—C16—N1 | 60.9 (2) |
C8—C9—C10—C11 | 63.6 (2) | C10—C11—C16—N1 | −178.62 (19) |
C9—C10—C11—O4 | 62.3 (2) | C17—N1—C18—C19 | −61.0 (2) |
C9—C10—C11—C12 | −56.5 (2) | C14—N1—C18—C19 | −176.99 (18) |
C9—C10—C11—C16 | −174.2 (2) | C16—N1—C18—C19 | 59.6 (3) |
C4—C5—C12—C11 | −28.4 (3) | N1—C18—C19—C20 | 95.2 (2) |
C6—C5—C12—C11 | 148.30 (19) | N1—C18—C19—C21 | 164.64 (19) |
C4—C5—C12—C7 | −152.0 (2) | C18—C19—C20—C21 | 105.7 (3) |
C6—C5—C12—C7 | 24.7 (2) | C18—C19—C21—C20 | −111.4 (2) |
C4—C5—C12—C13 | 90.8 (3) | O6—C22—C23—F2 | 35.2 (10) |
C6—C5—C12—C13 | −92.5 (2) | O5—C22—C23—F2 | −144.7 (10) |
O4—C11—C12—C5 | 175.83 (18) | O6—C22—C23—F1' | 178.7 (6) |
C10—C11—C12—C5 | −65.0 (2) | O5—C22—C23—F1' | −1.3 (7) |
C16—C11—C12—C5 | 55.5 (2) | O6—C22—C23—F3 | −98.2 (11) |
O4—C11—C12—C7 | −74.4 (2) | O5—C22—C23—F3 | 81.8 (11) |
C10—C11—C12—C7 | 44.8 (3) | O6—C22—C23—F2' | 55.9 (5) |
C16—C11—C12—C7 | 165.30 (19) | O5—C22—C23—F2' | −124.1 (4) |
O4—C11—C12—C13 | 56.1 (2) | O6—C22—C23—F1 | 155.0 (6) |
C10—C11—C12—C13 | 175.36 (17) | O5—C22—C23—F1 | −25.0 (7) |
C16—C11—C12—C13 | −64.2 (2) | O6—C22—C23—F3' | −58.1 (4) |
O2—C7—C12—C5 | −36.6 (2) | O5—C22—C23—F3' | 121.9 (4) |
D—H···A | D—H | H···A | D···A | D—H···A |
O1—H1···O5i | 0.84 | 1.79 | 2.622 (2) | 170 |
O4—H4···O7ii | 0.84 | 1.86 | 2.685 (2) | 169 |
O7—H7A···O6ii | 0.84 | 1.88 | 2.698 (2) | 166 |
Symmetry codes: (i) −x+2, y+1/2, −z+1/2; (ii) −x+1, y+1/2, −z+1/2. |
Experimental details
Crystal data | |
Chemical formula | C21H26NO4+·C2F3O2−·CH4O |
Mr | 501.49 |
Crystal system, space group | Orthorhombic, P212121 |
Temperature (K) | 113 |
a, b, c (Å) | 9.404 (2), 12.526 (3), 19.693 (5) |
V (Å3) | 2319.8 (10) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.12 |
Crystal size (mm) | 0.20 × 0.18 × 0.14 |
Data collection | |
Diffractometer | Rigaku Saturn CCD area detector |
Absorption correction | Multi-scan CrystalClear (Rigaku/MSC, 2005) |
Tmin, Tmax | 0.976, 0.983 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 16033, 2336, 2261 |
Rint | 0.030 |
(sin θ/λ)max (Å−1) | 0.595 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.032, 0.079, 1.07 |
No. of reflections | 2336 |
No. of parameters | 349 |
No. of restraints | 66 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.22, −0.19 |
Computer programs: CrystalClear (Rigaku/MSC, 2005), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), XCIF in SHELXTL (Sheldrick, 2008).
D—H···A | D—H | H···A | D···A | D—H···A |
O1—H1···O5i | 0.84 | 1.79 | 2.622 (2) | 170.2 |
O4—H4···O7ii | 0.84 | 1.86 | 2.685 (2) | 169.4 |
O7—H7A···O6ii | 0.84 | 1.88 | 2.698 (2) | 165.9 |
Symmetry codes: (i) −x+2, y+1/2, −z+1/2; (ii) −x+1, y+1/2, −z+1/2. |
Acknowledgements
This work was supported by the National Science Foundation of China and grant No. 2009ZX09501-005.
References
Crabtree, B. L. (1984). Clin Pharm. 3, 273–280. CAS PubMed Web of Science Google Scholar
Doshan, H. D. & Perez, J. (2006). WO Patent, WO 2006127899. Google Scholar
Rigaku/MSC (2005). CrystalClear. Rigaku/MSC,The Woodlands Texas, USA. Google Scholar
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals Google Scholar
Wagoner, H., Sanghvi, S. P., Boyd, T. A., Verbicky, C. & Andruski, S. (2006). WO Patent WO2006127898. Google Scholar
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Methylnaltrexone (MNTX) is a quaternary derivative of the pure opioid antagonist naltrexone, which is a chiral molecule and the quaternary nitrogen can be in R or S configuration. R-MNTX bromide, as a peripheral opioid antagonist, has been used in clinic to refrain from addiction caused by meconium drugs. However, it has been found surprisingly that S-MNTX exhibited opioid agonist activity (Wagoner et al., 2006). In this paper, we report the synthesis and crystal structure of the title compound 2,2,2-trifluoroacetate of S-MNTX.
In the crystal structure of the title compound (Fig.1), C24H30F3NO7, the conformation of the polycyclic backbone of the noroxymorphone skeleton can be simplified in terms of the angles between the least-squares planes of these rings. Ring A is defined by atoms C1—C6, ring B by atoms C4/C5/C11/C12/C15/C16, ring C by atoms C7—C12, and ring D by atoms C11—C14/ C16/N1. The angle between the rings B and D is 84.5 (6)°. The angle between the planes of ring C and ring A/B/D is respectively 85.8 (6)/80.0 (7)/10.3 (7)°. The structure displays O—H···O hydrogen bonding (Table 1, Fig. 2). The structure exhibits disorder.