organic compounds
4β-Hydroxy-12,13-epoxytrichothec-9-ene
aState Key Laboratory of Rice Biology and Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Ministry of Agriculture, Institute of Biotechnology, Zhejiang University, Hangzhou, People's Republic of China, and bCollege of Pharmaceutical Science, Zhejiang University, People's Republic of China
*Correspondence e-mail: chensy@zju.edu.cn
The 15H22O3, contains two independent molecules with similar structures. Each molecule contains two six-membered rings and one five-membered ring. The five-membered ring displays an with the C atom linking the epoxy group as the flap, while the two six-membered rings show half-chair conformations. The two independent molecules are linked by an O—H⋯O hydrogen bond. These dimers are further linked by O—H⋯O hydrogen bonds, forming supramolecular chains running along the a axis.
in the crystal of the title compound, CRelated literature
For the applications of trichodermin derivatives, see: Wei et al. (1974); Zhang et al. (2007). For ring conformations, see: Cremer & Pople (1975). For a related structure, see: Chen et al. (2008).
Experimental
Crystal data
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Data collection
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Refinement
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Data collection: PROCESS-AUTO (Rigaku, 1998); cell PROCESS-AUTO; data reduction: CrystalStructure (Rigaku/MSC, 2005); 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).
Supporting information
10.1107/S1600536812012408/fj2530sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536812012408/fj2530Isup2.hkl
The title compound is prepared by deacetylation reaction of trichodermin in the presence of sodium hydroxide solution (3 M) at 333 K. The reaction miture was stirred for 30 min, then extracted with petroleum ether. The upper phase was filtered and evaporated in vacuo. Sample was then redissolved in petroleum ether to crystalize. The single crystlas were obtained by recrystalized from the hexane solution.
H atoms were placed in calculated positions with C—H = 0.93–0.98 Å, and O—H = 0.82 Å, and refined in riding mode with Uiso(H) = 1.5Ueq(C,O) for methyl H and hydroxy H atoms, and 1.2Ueq(C) for the others. The O3b, C13b and C14B atoms are restrained so that their Uij components approximate to isotropic behavior. In the absence of significant
effects, Friedel pairs were merged, the was not determined.The title compound, deacetyl-trichodermin, is a trichodermin derivative. It shows potential bactericidal activity against Botrytis cinerea, Rhizoctonia solani and Pythium ultimum. Trichodermin is a member of the 4β-aceoxy-12,13-epoxytrichothecenes (Chen et al., 2008), which form a medically and economically important class of mycotoxins produced by fungi that spoil fruit and grain (Zhang et al., 2007). Many studies (Wei et al., 1974) show that trichodermin is a very potent inhibitor of protein synthesis in mammalian cells. Trichodermin inhibits the elongation and/or termination processes of protein synthesis.
The assymetric unit of the title compound contains two independent molecules with the similar structure. The molecule contains two six membered rings and one five membered ring. The five membered ring displays an
In the C12A-containing ring the C12A atom lies at the flap position and is 0.680 (3) Å out of the mean plane formed by the other four atoms (Fig. 1).Two six membered rings show distinct conformation. The O1A-containing ring displays a usual chair conformation. The ring puckering analysis for the C9A-containing six membered ring suggests a half-chair conformation (Cremer & Pople, 1975). The typical C9A═C10A double bond (Table 1) suggests these atoms are sp2 hybridized.
The two independent molecules are linked by an O—H···O hydrogen bond, forming the supra-molecular dimer (Table 1); the dimers are linked by O—H···O hydeogen bond to form the supra-molecular chains running along the a axis in the crystal (Fig. 2).
For the applications of trichodermin derivatives, see: Wei et al. (1974); Zhang et al. (2007). For ring conformations, see: Cremer & Pople (1975). For a related structure, see: Chen et al. (2008).
Data collection: PROCESS-AUTO (Rigaku, 1998); cell
PROCESS-AUTO (Rigaku, 1998); data reduction: CrystalStructure (Rigaku/MSC, 2005); 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).Fig. 1. The molecular structure of (I) with 25% probability displacement ellipsoids (arbitrary spheres for H atoms). | |
Fig. 2. The crystal packing diagram showing hydrogen bonds (dashed lines). |
C15H22O3 | F(000) = 1088 |
Mr = 250.33 | Dx = 1.208 Mg m−3 |
Orthorhombic, P212121 | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: P 2ac 2ab | Cell parameters from 15358 reflections |
a = 7.0236 (5) Å | θ = 3.0–27.5° |
b = 12.0644 (10) Å | µ = 0.08 mm−1 |
c = 32.475 (2) Å | T = 296 K |
V = 2751.8 (3) Å3 | Platelet, colourless |
Z = 8 | 0.52 × 0.38 × 0.10 mm |
Rigaku R-AXIS RAPID diffractometer | 2054 reflections with I > 2σ(I) |
Radiation source: rolling anode | Rint = 0.057 |
Graphite monochromator | θmax = 25.5°, θmin = 3.0° |
Detector resolution: 10.00 pixels mm-1 | h = −8→8 |
ω scans | k = −14→14 |
22591 measured reflections | l = −39→39 |
2935 independent 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)] = 0.074 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.222 | H-atom parameters constrained |
S = 1.05 | w = 1/[σ2(Fo2) + (0.1337P)2 + 0.8125P] where P = (Fo2 + 2Fc2)/3 |
2935 reflections | (Δ/σ)max = 0.001 |
333 parameters | Δρmax = 0.50 e Å−3 |
18 restraints | Δρmin = −0.29 e Å−3 |
C15H22O3 | V = 2751.8 (3) Å3 |
Mr = 250.33 | Z = 8 |
Orthorhombic, P212121 | Mo Kα radiation |
a = 7.0236 (5) Å | µ = 0.08 mm−1 |
b = 12.0644 (10) Å | T = 296 K |
c = 32.475 (2) Å | 0.52 × 0.38 × 0.10 mm |
Rigaku R-AXIS RAPID diffractometer | 2054 reflections with I > 2σ(I) |
22591 measured reflections | Rint = 0.057 |
2935 independent reflections |
R[F2 > 2σ(F2)] = 0.074 | 18 restraints |
wR(F2) = 0.222 | H-atom parameters constrained |
S = 1.05 | Δρmax = 0.50 e Å−3 |
2935 reflections | Δρmin = −0.29 e Å−3 |
333 parameters |
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 | ||
O1A | −0.0483 (4) | 0.2711 (3) | 0.22098 (10) | 0.0508 (9) | |
O2A | 0.5717 (4) | 0.2768 (4) | 0.25029 (12) | 0.0615 (10) | |
H1A | 0.6610 | 0.2602 | 0.2352 | 0.092* | |
O3A | 0.2507 (7) | 0.1261 (4) | 0.29715 (13) | 0.0810 (14) | |
C2A | 0.0776 (7) | 0.2677 (5) | 0.25615 (16) | 0.0524 (13) | |
H2A | 0.0085 | 0.2823 | 0.2818 | 0.063* | |
C3A | 0.2507 (7) | 0.3429 (5) | 0.25198 (18) | 0.0546 (13) | |
H3A1 | 0.3002 | 0.3622 | 0.2789 | 0.066* | |
H3A2 | 0.2168 | 0.4107 | 0.2377 | 0.066* | |
C4A | 0.4007 (6) | 0.2775 (4) | 0.22718 (18) | 0.0505 (12) | |
H4A | 0.4218 | 0.3128 | 0.2004 | 0.061* | |
C5A | 0.3112 (7) | 0.1593 (4) | 0.22112 (17) | 0.0522 (12) | |
C6A | 0.1846 (7) | 0.1609 (4) | 0.18080 (16) | 0.0510 (12) | |
C7A | 0.0549 (8) | 0.0578 (5) | 0.1773 (2) | 0.0654 (16) | |
H7A1 | 0.1325 | −0.0087 | 0.1781 | 0.079* | |
H7A2 | −0.0316 | 0.0556 | 0.2005 | 0.079* | |
C8A | −0.0589 (9) | 0.0597 (6) | 0.1376 (2) | 0.0798 (19) | |
H8A1 | 0.0233 | 0.0370 | 0.1152 | 0.096* | |
H8A2 | −0.1609 | 0.0058 | 0.1397 | 0.096* | |
C9A | −0.1422 (8) | 0.1687 (6) | 0.12756 (18) | 0.0692 (17) | |
C10A | −0.0994 (8) | 0.2585 (6) | 0.14889 (17) | 0.0634 (15) | |
H10A | −0.1655 | 0.3235 | 0.1432 | 0.076* | |
C11A | 0.0499 (7) | 0.2611 (4) | 0.18179 (15) | 0.0496 (12) | |
H11A | 0.1265 | 0.3281 | 0.1778 | 0.059* | |
C12A | 0.1732 (7) | 0.1567 (5) | 0.25720 (16) | 0.0541 (12) | |
C13A | 0.0998 (11) | 0.0591 (6) | 0.2790 (2) | 0.085 (2) | |
H13A | −0.0263 | 0.0639 | 0.2910 | 0.102* | |
H13B | 0.1336 | −0.0135 | 0.2683 | 0.102* | |
C14A | 0.4598 (9) | 0.0678 (5) | 0.2210 (3) | 0.084 (2) | |
H14A | 0.5213 | 0.0650 | 0.2474 | 0.127* | |
H14B | 0.5528 | 0.0827 | 0.2001 | 0.127* | |
H14C | 0.3993 | −0.0020 | 0.2156 | 0.127* | |
C15A | 0.3130 (9) | 0.1675 (7) | 0.1428 (2) | 0.082 (2) | |
H15A | 0.2402 | 0.1935 | 0.1197 | 0.122* | |
H15B | 0.3632 | 0.0953 | 0.1368 | 0.122* | |
H15C | 0.4160 | 0.2178 | 0.1480 | 0.122* | |
C16A | −0.2736 (10) | 0.1729 (8) | 0.08985 (18) | 0.091 (2) | |
H16A | −0.3542 | 0.2370 | 0.0916 | 0.137* | |
H16B | −0.3508 | 0.1073 | 0.0891 | 0.137* | |
H16C | −0.1981 | 0.1771 | 0.0653 | 0.137* | |
O1B | 0.3469 (6) | 0.2007 (4) | 0.43814 (14) | 0.0782 (13) | |
O2B | 0.6999 (7) | 0.2956 (5) | 0.32971 (13) | 0.0941 (16) | |
H1B | 0.6615 | 0.2865 | 0.3061 | 0.141* | |
O3B | 0.7218 (12) | 0.4044 (6) | 0.42104 (19) | 0.133 (2) | |
C2B | 0.4209 (10) | 0.2993 (6) | 0.4174 (2) | 0.084 (2) | |
H2B | 0.3637 | 0.3674 | 0.4282 | 0.101* | |
C3B | 0.4153 (10) | 0.2959 (7) | 0.3716 (2) | 0.092 (2) | |
H3B1 | 0.2993 | 0.2601 | 0.3623 | 0.110* | |
H3B2 | 0.4187 | 0.3705 | 0.3605 | 0.110* | |
C4B | 0.5840 (8) | 0.2323 (6) | 0.35772 (17) | 0.0691 (17) | |
H4B | 0.5430 | 0.1634 | 0.3444 | 0.083* | |
C5B | 0.7004 (7) | 0.2051 (6) | 0.39682 (16) | 0.0596 (14) | |
C6B | 0.6248 (7) | 0.0929 (5) | 0.41599 (17) | 0.0573 (14) | |
C7B | 0.7008 (10) | 0.0739 (8) | 0.4601 (2) | 0.098 (3) | |
H7B1 | 0.8389 | 0.0724 | 0.4594 | 0.118* | |
H7B2 | 0.6625 | 0.1356 | 0.4774 | 0.118* | |
C8B | 0.6291 (14) | −0.0325 (10) | 0.4789 (3) | 0.134 (4) | |
H8B1 | 0.6950 | −0.0944 | 0.4663 | 0.160* | |
H8B2 | 0.6596 | −0.0329 | 0.5081 | 0.160* | |
C9B | 0.4207 (12) | −0.0483 (6) | 0.4739 (2) | 0.083 (2) | |
C10B | 0.3238 (10) | 0.0099 (5) | 0.44710 (19) | 0.0696 (16) | |
H10B | 0.1947 | −0.0054 | 0.4443 | 0.084* | |
C11B | 0.4075 (7) | 0.1008 (5) | 0.42018 (17) | 0.0545 (13) | |
H11B | 0.3511 | 0.0951 | 0.3927 | 0.065* | |
C12B | 0.6341 (14) | 0.2953 (6) | 0.4252 (2) | 0.093 (3) | |
C13B | 0.7293 (19) | 0.3454 (9) | 0.4596 (3) | 0.136 (4) | |
H13C | 0.8508 | 0.3145 | 0.4679 | 0.163* | |
H13D | 0.6511 | 0.3728 | 0.4820 | 0.163* | |
C14B | 0.9136 (10) | 0.2066 (9) | 0.3893 (3) | 0.103 (2) | |
H14D | 0.9477 | 0.2735 | 0.3751 | 0.154* | |
H14E | 0.9485 | 0.1437 | 0.3728 | 0.154* | |
H14F | 0.9793 | 0.2034 | 0.4152 | 0.154* | |
C15B | 0.6810 (16) | −0.0047 (7) | 0.3889 (3) | 0.126 (4) | |
H15D | 0.6592 | −0.0727 | 0.4035 | 0.189* | |
H15E | 0.8135 | 0.0010 | 0.3819 | 0.189* | |
H15F | 0.6060 | −0.0040 | 0.3642 | 0.189* | |
C16B | 0.3229 (17) | −0.1340 (7) | 0.5011 (2) | 0.117 (3) | |
H16D | 0.3350 | −0.1126 | 0.5294 | 0.176* | |
H16E | 0.3816 | −0.2051 | 0.4970 | 0.176* | |
H16F | 0.1906 | −0.1384 | 0.4939 | 0.176* |
U11 | U22 | U33 | U12 | U13 | U23 | |
O1A | 0.0345 (16) | 0.051 (2) | 0.066 (2) | 0.0018 (15) | 0.0006 (16) | −0.0087 (17) |
O2A | 0.0352 (16) | 0.066 (3) | 0.083 (2) | −0.0061 (18) | 0.0035 (19) | −0.008 (2) |
O3A | 0.078 (3) | 0.077 (3) | 0.088 (3) | −0.027 (2) | −0.027 (3) | 0.021 (2) |
C2A | 0.038 (2) | 0.054 (3) | 0.065 (3) | −0.007 (2) | 0.003 (2) | −0.014 (2) |
C3A | 0.041 (2) | 0.039 (3) | 0.085 (3) | 0.002 (2) | −0.002 (3) | −0.012 (3) |
C4A | 0.031 (2) | 0.041 (3) | 0.079 (3) | 0.001 (2) | 0.002 (2) | −0.006 (3) |
C5A | 0.036 (2) | 0.033 (2) | 0.088 (3) | 0.000 (2) | 0.004 (3) | −0.005 (3) |
C6A | 0.038 (2) | 0.044 (3) | 0.071 (3) | 0.000 (2) | 0.010 (2) | −0.009 (3) |
C7A | 0.053 (3) | 0.043 (3) | 0.101 (4) | −0.007 (3) | 0.001 (3) | −0.019 (3) |
C8A | 0.061 (3) | 0.088 (5) | 0.090 (4) | −0.018 (4) | 0.005 (4) | −0.033 (4) |
C9A | 0.055 (3) | 0.093 (5) | 0.059 (3) | −0.007 (3) | 0.012 (3) | −0.011 (3) |
C10A | 0.052 (3) | 0.072 (4) | 0.066 (3) | 0.001 (3) | 0.006 (3) | −0.003 (3) |
C11A | 0.042 (2) | 0.045 (3) | 0.061 (3) | −0.002 (2) | 0.011 (2) | −0.002 (2) |
C12A | 0.044 (2) | 0.048 (3) | 0.070 (3) | −0.008 (3) | −0.002 (3) | 0.007 (3) |
C13A | 0.088 (4) | 0.079 (4) | 0.089 (4) | −0.038 (4) | −0.021 (4) | 0.021 (4) |
C14A | 0.056 (3) | 0.049 (3) | 0.148 (6) | 0.019 (3) | −0.014 (4) | −0.021 (4) |
C15A | 0.052 (3) | 0.098 (5) | 0.094 (4) | −0.008 (4) | 0.020 (3) | −0.035 (4) |
C16A | 0.061 (4) | 0.149 (7) | 0.064 (3) | −0.002 (4) | 0.005 (3) | −0.011 (4) |
O1B | 0.073 (3) | 0.063 (3) | 0.099 (3) | 0.011 (2) | 0.037 (2) | 0.010 (2) |
O2B | 0.072 (3) | 0.138 (5) | 0.072 (2) | −0.031 (3) | −0.001 (2) | 0.034 (3) |
O3B | 0.161 (4) | 0.117 (4) | 0.120 (4) | −0.066 (4) | 0.010 (4) | −0.002 (3) |
C2B | 0.082 (4) | 0.053 (4) | 0.117 (6) | 0.007 (3) | 0.039 (4) | −0.003 (4) |
C3B | 0.067 (4) | 0.103 (6) | 0.106 (5) | 0.005 (4) | 0.011 (4) | 0.047 (5) |
C4B | 0.051 (3) | 0.095 (5) | 0.062 (3) | −0.016 (3) | −0.004 (3) | 0.019 (3) |
C5B | 0.041 (3) | 0.084 (4) | 0.054 (3) | −0.002 (3) | −0.008 (2) | 0.010 (3) |
C6B | 0.047 (3) | 0.061 (3) | 0.064 (3) | 0.011 (3) | 0.003 (3) | 0.002 (3) |
C7B | 0.059 (4) | 0.136 (7) | 0.100 (5) | −0.004 (4) | −0.021 (4) | 0.058 (5) |
C8B | 0.116 (7) | 0.142 (9) | 0.143 (8) | 0.019 (7) | −0.015 (7) | 0.078 (7) |
C9B | 0.105 (5) | 0.065 (4) | 0.078 (4) | −0.007 (4) | −0.002 (4) | 0.022 (3) |
C10B | 0.068 (4) | 0.063 (4) | 0.078 (4) | −0.019 (3) | −0.003 (3) | 0.006 (3) |
C11B | 0.042 (3) | 0.059 (3) | 0.062 (3) | −0.004 (2) | −0.002 (3) | 0.002 (3) |
C12B | 0.140 (7) | 0.074 (5) | 0.066 (4) | −0.058 (5) | 0.013 (4) | −0.005 (3) |
C13B | 0.155 (6) | 0.133 (5) | 0.118 (5) | −0.030 (5) | −0.003 (4) | −0.004 (4) |
C14B | 0.068 (3) | 0.129 (5) | 0.112 (4) | −0.002 (4) | −0.002 (3) | 0.022 (4) |
C15B | 0.156 (9) | 0.080 (5) | 0.143 (7) | 0.028 (6) | 0.061 (7) | −0.006 (5) |
C16B | 0.159 (9) | 0.090 (6) | 0.103 (5) | −0.030 (6) | 0.003 (6) | 0.033 (5) |
O1A—C2A | 1.445 (6) | O1B—C11B | 1.405 (7) |
O1A—C11A | 1.452 (6) | O1B—C2B | 1.462 (8) |
O2A—C4A | 1.417 (6) | O2B—C4B | 1.440 (7) |
O2A—H1A | 0.8200 | O2B—H1B | 0.8200 |
O3A—C12A | 1.454 (6) | O3B—C13B | 1.441 (11) |
O3A—C13A | 1.458 (7) | O3B—C12B | 1.459 (9) |
C2A—C12A | 1.499 (8) | C2B—C3B | 1.487 (11) |
C2A—C3A | 1.523 (7) | C2B—C12B | 1.520 (12) |
C2A—H2A | 0.9800 | C2B—H2B | 0.9800 |
C3A—C4A | 1.543 (7) | C3B—C4B | 1.483 (10) |
C3A—H3A1 | 0.9700 | C3B—H3B1 | 0.9700 |
C3A—H3A2 | 0.9700 | C3B—H3B2 | 0.9700 |
C4A—C5A | 1.571 (7) | C4B—C5B | 1.545 (7) |
C4A—H4A | 0.9800 | C4B—H4B | 0.9800 |
C5A—C14A | 1.519 (7) | C5B—C12B | 1.500 (10) |
C5A—C12A | 1.521 (7) | C5B—C14B | 1.517 (9) |
C5A—C6A | 1.583 (8) | C5B—C6B | 1.582 (8) |
C6A—C15A | 1.531 (8) | C6B—C15B | 1.522 (10) |
C6A—C11A | 1.535 (7) | C6B—C11B | 1.535 (7) |
C6A—C7A | 1.547 (7) | C6B—C7B | 1.547 (9) |
C7A—C8A | 1.515 (9) | C7B—C8B | 1.509 (12) |
C7A—H7A1 | 0.9700 | C7B—H7B1 | 0.9700 |
C7A—H7A2 | 0.9700 | C7B—H7B2 | 0.9700 |
C8A—C9A | 1.476 (10) | C8B—C9B | 1.485 (13) |
C8A—H8A1 | 0.9700 | C8B—H8B1 | 0.9700 |
C8A—H8A2 | 0.9700 | C8B—H8B2 | 0.9700 |
C9A—C10A | 1.320 (9) | C9B—C10B | 1.309 (9) |
C9A—C16A | 1.534 (8) | C9B—C16B | 1.523 (10) |
C10A—C11A | 1.497 (7) | C10B—C11B | 1.521 (8) |
C10A—H10A | 0.9300 | C10B—H10B | 0.9300 |
C11A—H11A | 0.9800 | C11B—H11B | 0.9800 |
C12A—C13A | 1.467 (8) | C12B—C13B | 1.435 (12) |
C13A—H13A | 0.9700 | C13B—H13C | 0.9700 |
C13A—H13B | 0.9700 | C13B—H13D | 0.9700 |
C14A—H14A | 0.9600 | C14B—H14D | 0.9600 |
C14A—H14B | 0.9600 | C14B—H14E | 0.9600 |
C14A—H14C | 0.9600 | C14B—H14F | 0.9600 |
C15A—H15A | 0.9600 | C15B—H15D | 0.9600 |
C15A—H15B | 0.9600 | C15B—H15E | 0.9600 |
C15A—H15C | 0.9600 | C15B—H15F | 0.9600 |
C16A—H16A | 0.9600 | C16B—H16D | 0.9600 |
C16A—H16B | 0.9600 | C16B—H16E | 0.9600 |
C16A—H16C | 0.9600 | C16B—H16F | 0.9600 |
C2A—O1A—C11A | 113.6 (3) | C11B—O1B—C2B | 113.5 (4) |
C4A—O2A—H1A | 109.5 | C4B—O2B—H1B | 109.5 |
C12A—O3A—C13A | 60.5 (4) | C13B—O3B—C12B | 59.3 (6) |
O1A—C2A—C12A | 108.5 (4) | O1B—C2B—C3B | 115.4 (6) |
O1A—C2A—C3A | 113.7 (4) | O1B—C2B—C12B | 104.3 (6) |
C12A—C2A—C3A | 100.2 (4) | C3B—C2B—C12B | 101.1 (5) |
O1A—C2A—H2A | 111.3 | O1B—C2B—H2B | 111.8 |
C12A—C2A—H2A | 111.3 | C3B—C2B—H2B | 111.8 |
C3A—C2A—H2A | 111.3 | C12B—C2B—H2B | 111.8 |
C2A—C3A—C4A | 106.6 (4) | C4B—C3B—C2B | 107.3 (6) |
C2A—C3A—H3A1 | 110.4 | C4B—C3B—H3B1 | 110.3 |
C4A—C3A—H3A1 | 110.4 | C2B—C3B—H3B1 | 110.3 |
C2A—C3A—H3A2 | 110.4 | C4B—C3B—H3B2 | 110.3 |
C4A—C3A—H3A2 | 110.4 | C2B—C3B—H3B2 | 110.3 |
H3A1—C3A—H3A2 | 108.6 | H3B1—C3B—H3B2 | 108.5 |
O2A—C4A—C3A | 107.8 (4) | O2B—C4B—C3B | 111.7 (6) |
O2A—C4A—C5A | 113.6 (4) | O2B—C4B—C5B | 109.4 (4) |
C3A—C4A—C5A | 104.9 (4) | C3B—C4B—C5B | 106.4 (5) |
O2A—C4A—H4A | 110.1 | O2B—C4B—H4B | 109.7 |
C3A—C4A—H4A | 110.1 | C3B—C4B—H4B | 109.7 |
C5A—C4A—H4A | 110.1 | C5B—C4B—H4B | 109.7 |
C14A—C5A—C12A | 115.1 (5) | C12B—C5B—C14B | 113.4 (7) |
C14A—C5A—C4A | 112.6 (4) | C12B—C5B—C4B | 100.8 (6) |
C12A—C5A—C4A | 100.2 (4) | C14B—C5B—C4B | 112.8 (5) |
C14A—C5A—C6A | 113.2 (5) | C12B—C5B—C6B | 106.0 (4) |
C12A—C5A—C6A | 106.2 (4) | C14B—C5B—C6B | 113.9 (6) |
C4A—C5A—C6A | 108.5 (4) | C4B—C5B—C6B | 109.1 (5) |
C15A—C6A—C11A | 109.8 (5) | C15B—C6B—C11B | 111.0 (6) |
C15A—C6A—C7A | 109.2 (5) | C15B—C6B—C7B | 109.4 (6) |
C11A—C6A—C7A | 105.8 (4) | C11B—C6B—C7B | 105.7 (5) |
C15A—C6A—C5A | 109.7 (4) | C15B—C6B—C5B | 110.3 (5) |
C11A—C6A—C5A | 109.8 (4) | C11B—C6B—C5B | 108.4 (5) |
C7A—C6A—C5A | 112.5 (5) | C7B—C6B—C5B | 112.0 (5) |
C8A—C7A—C6A | 111.2 (5) | C8B—C7B—C6B | 112.7 (7) |
C8A—C7A—H7A1 | 109.4 | C8B—C7B—H7B1 | 109.1 |
C6A—C7A—H7A1 | 109.4 | C6B—C7B—H7B1 | 109.1 |
C8A—C7A—H7A2 | 109.4 | C8B—C7B—H7B2 | 109.1 |
C6A—C7A—H7A2 | 109.4 | C6B—C7B—H7B2 | 109.1 |
H7A1—C7A—H7A2 | 108.0 | H7B1—C7B—H7B2 | 107.8 |
C9A—C8A—C7A | 114.3 (5) | C9B—C8B—C7B | 113.2 (7) |
C9A—C8A—H8A1 | 108.7 | C9B—C8B—H8B1 | 108.9 |
C7A—C8A—H8A1 | 108.7 | C7B—C8B—H8B1 | 108.9 |
C9A—C8A—H8A2 | 108.7 | C9B—C8B—H8B2 | 108.9 |
C7A—C8A—H8A2 | 108.7 | C7B—C8B—H8B2 | 108.9 |
H8A1—C8A—H8A2 | 107.6 | H8B1—C8B—H8B2 | 107.8 |
C10A—C9A—C8A | 121.6 (6) | C10B—C9B—C8B | 121.1 (7) |
C10A—C9A—C16A | 121.9 (7) | C10B—C9B—C16B | 121.0 (8) |
C8A—C9A—C16A | 116.4 (6) | C8B—C9B—C16B | 117.9 (7) |
C9A—C10A—C11A | 123.5 (6) | C9B—C10B—C11B | 124.6 (6) |
C9A—C10A—H10A | 118.3 | C9B—C10B—H10B | 117.7 |
C11A—C10A—H10A | 118.3 | C11B—C10B—H10B | 117.7 |
O1A—C11A—C10A | 107.1 (4) | O1B—C11B—C10B | 105.3 (4) |
O1A—C11A—C6A | 112.1 (4) | O1B—C11B—C6B | 113.0 (5) |
C10A—C11A—C6A | 113.6 (4) | C10B—C11B—C6B | 113.0 (5) |
O1A—C11A—H11A | 107.9 | O1B—C11B—H11B | 108.5 |
C10A—C11A—H11A | 107.9 | C10B—C11B—H11B | 108.5 |
C6A—C11A—H11A | 107.9 | C6B—C11B—H11B | 108.5 |
O3A—C12A—C13A | 59.9 (4) | C13B—C12B—O3B | 59.7 (5) |
O3A—C12A—C2A | 114.5 (5) | C13B—C12B—C5B | 129.7 (9) |
C13A—C12A—C2A | 124.8 (5) | O3B—C12B—C5B | 117.8 (6) |
O3A—C12A—C5A | 117.0 (4) | C13B—C12B—C2B | 125.1 (9) |
C13A—C12A—C5A | 127.7 (5) | O3B—C12B—C2B | 111.8 (8) |
C2A—C12A—C5A | 104.5 (4) | C5B—C12B—C2B | 103.1 (6) |
O3A—C13A—C12A | 59.6 (4) | C12B—C13B—O3B | 61.0 (6) |
O3A—C13A—H13A | 117.8 | C12B—C13B—H13C | 117.7 |
C12A—C13A—H13A | 117.8 | O3B—C13B—H13C | 117.7 |
O3A—C13A—H13B | 117.8 | C12B—C13B—H13D | 117.7 |
C12A—C13A—H13B | 117.8 | O3B—C13B—H13D | 117.7 |
H13A—C13A—H13B | 114.9 | H13C—C13B—H13D | 114.8 |
C5A—C14A—H14A | 109.5 | C5B—C14B—H14D | 109.5 |
C5A—C14A—H14B | 109.5 | C5B—C14B—H14E | 109.5 |
H14A—C14A—H14B | 109.5 | H14D—C14B—H14E | 109.5 |
C5A—C14A—H14C | 109.5 | C5B—C14B—H14F | 109.5 |
H14A—C14A—H14C | 109.5 | H14D—C14B—H14F | 109.5 |
H14B—C14A—H14C | 109.5 | H14E—C14B—H14F | 109.5 |
C6A—C15A—H15A | 109.5 | C6B—C15B—H15D | 109.5 |
C6A—C15A—H15B | 109.5 | C6B—C15B—H15E | 109.5 |
H15A—C15A—H15B | 109.5 | H15D—C15B—H15E | 109.5 |
C6A—C15A—H15C | 109.5 | C6B—C15B—H15F | 109.5 |
H15A—C15A—H15C | 109.5 | H15D—C15B—H15F | 109.5 |
H15B—C15A—H15C | 109.5 | H15E—C15B—H15F | 109.5 |
C9A—C16A—H16A | 109.5 | C9B—C16B—H16D | 109.5 |
C9A—C16A—H16B | 109.5 | C9B—C16B—H16E | 109.5 |
H16A—C16A—H16B | 109.5 | H16D—C16B—H16E | 109.5 |
C9A—C16A—H16C | 109.5 | C9B—C16B—H16F | 109.5 |
H16A—C16A—H16C | 109.5 | H16D—C16B—H16F | 109.5 |
H16B—C16A—H16C | 109.5 | H16E—C16B—H16F | 109.5 |
C11A—O1A—C2A—C12A | −63.0 (5) | C11B—O1B—C2B—C3B | 43.5 (7) |
C11A—O1A—C2A—C3A | 47.5 (5) | C11B—O1B—C2B—C12B | −66.4 (7) |
O1A—C2A—C3A—C4A | −83.8 (5) | O1B—C2B—C3B—C4B | −81.8 (7) |
C12A—C2A—C3A—C4A | 31.8 (5) | C12B—C2B—C3B—C4B | 30.1 (8) |
C2A—C3A—C4A—O2A | −126.2 (5) | C2B—C3B—C4B—O2B | −123.7 (6) |
C2A—C3A—C4A—C5A | −4.9 (6) | C2B—C3B—C4B—C5B | −4.3 (8) |
O2A—C4A—C5A—C14A | −28.9 (7) | O2B—C4B—C5B—C12B | 97.2 (6) |
C3A—C4A—C5A—C14A | −146.4 (5) | C3B—C4B—C5B—C12B | −23.6 (6) |
O2A—C4A—C5A—C12A | 93.9 (5) | O2B—C4B—C5B—C14B | −24.0 (9) |
C3A—C4A—C5A—C12A | −23.5 (5) | C3B—C4B—C5B—C14B | −144.8 (7) |
O2A—C4A—C5A—C6A | −155.0 (4) | O2B—C4B—C5B—C6B | −151.5 (5) |
C3A—C4A—C5A—C6A | 87.5 (5) | C3B—C4B—C5B—C6B | 87.6 (6) |
C14A—C5A—C6A—C15A | −54.6 (6) | C12B—C5B—C6B—C15B | 178.8 (7) |
C12A—C5A—C6A—C15A | 178.1 (5) | C14B—C5B—C6B—C15B | −55.8 (8) |
C4A—C5A—C6A—C15A | 71.2 (5) | C4B—C5B—C6B—C15B | 71.1 (7) |
C14A—C5A—C6A—C11A | −175.4 (5) | C12B—C5B—C6B—C11B | 57.1 (6) |
C12A—C5A—C6A—C11A | 57.3 (5) | C14B—C5B—C6B—C11B | −177.5 (6) |
C4A—C5A—C6A—C11A | −49.6 (5) | C4B—C5B—C6B—C11B | −50.6 (6) |
C14A—C5A—C6A—C7A | 67.1 (6) | C12B—C5B—C6B—C7B | −59.1 (7) |
C12A—C5A—C6A—C7A | −60.2 (5) | C14B—C5B—C6B—C7B | 66.3 (8) |
C4A—C5A—C6A—C7A | −167.1 (4) | C4B—C5B—C6B—C7B | −166.8 (5) |
C15A—C6A—C7A—C8A | −55.9 (6) | C15B—C6B—C7B—C8B | −57.6 (9) |
C11A—C6A—C7A—C8A | 62.2 (6) | C11B—C6B—C7B—C8B | 61.9 (9) |
C5A—C6A—C7A—C8A | −177.9 (5) | C5B—C6B—C7B—C8B | 179.7 (7) |
C6A—C7A—C8A—C9A | −43.6 (7) | C6B—C7B—C8B—C9B | −47.3 (12) |
C7A—C8A—C9A—C10A | 8.0 (9) | C7B—C8B—C9B—C10B | 16.2 (15) |
C7A—C8A—C9A—C16A | −174.7 (5) | C7B—C8B—C9B—C16B | −163.5 (8) |
C8A—C9A—C10A—C11A | 6.6 (9) | C8B—C9B—C10B—C11B | −2.7 (13) |
C16A—C9A—C10A—C11A | −170.6 (5) | C16B—C9B—C10B—C11B | 177.0 (7) |
C2A—O1A—C11A—C10A | 176.3 (4) | C2B—O1B—C11B—C10B | 177.5 (6) |
C2A—O1A—C11A—C6A | 51.1 (5) | C2B—O1B—C11B—C6B | 53.7 (7) |
C9A—C10A—C11A—O1A | −108.8 (6) | C9B—C10B—C11B—O1B | −104.0 (7) |
C9A—C10A—C11A—C6A | 15.5 (7) | C9B—C10B—C11B—C6B | 19.8 (9) |
C15A—C6A—C11A—O1A | −168.6 (4) | C15B—C6B—C11B—O1B | −168.6 (5) |
C7A—C6A—C11A—O1A | 73.7 (5) | C7B—C6B—C11B—O1B | 73.0 (7) |
C5A—C6A—C11A—O1A | −47.9 (5) | C5B—C6B—C11B—O1B | −47.2 (6) |
C15A—C6A—C11A—C10A | 69.8 (6) | C15B—C6B—C11B—C10B | 72.0 (7) |
C7A—C6A—C11A—C10A | −47.9 (6) | C7B—C6B—C11B—C10B | −46.4 (7) |
C5A—C6A—C11A—C10A | −169.5 (4) | C5B—C6B—C11B—C10B | −166.7 (4) |
C13A—O3A—C12A—C2A | 117.5 (6) | C13B—O3B—C12B—C5B | −121.9 (11) |
C13A—O3A—C12A—C5A | −119.8 (6) | C13B—O3B—C12B—C2B | 119.0 (9) |
O1A—C2A—C12A—O3A | −159.7 (4) | C14B—C5B—C12B—C13B | −32.9 (10) |
C3A—C2A—C12A—O3A | 80.9 (5) | C4B—C5B—C12B—C13B | −153.6 (8) |
O1A—C2A—C12A—C13A | −90.5 (6) | C6B—C5B—C12B—C13B | 92.7 (9) |
C3A—C2A—C12A—C13A | 150.1 (5) | C14B—C5B—C12B—O3B | 39.5 (10) |
O1A—C2A—C12A—C5A | 71.0 (5) | C4B—C5B—C12B—O3B | −81.3 (8) |
C3A—C2A—C12A—C5A | −48.3 (5) | C6B—C5B—C12B—O3B | 165.1 (7) |
C14A—C5A—C12A—O3A | 38.4 (7) | C14B—C5B—C12B—C2B | 163.1 (6) |
C4A—C5A—C12A—O3A | −82.7 (5) | C4B—C5B—C12B—C2B | 42.3 (6) |
C6A—C5A—C12A—O3A | 164.5 (4) | C6B—C5B—C12B—C2B | −71.3 (6) |
C14A—C5A—C12A—C13A | −33.1 (8) | O1B—C2B—C12B—C13B | −90.5 (9) |
C4A—C5A—C12A—C13A | −154.1 (5) | C3B—C2B—C12B—C13B | 149.4 (8) |
C6A—C5A—C12A—C13A | 93.1 (6) | O1B—C2B—C12B—O3B | −158.0 (5) |
C14A—C5A—C12A—C2A | 166.1 (5) | C3B—C2B—C12B—O3B | 81.9 (7) |
C4A—C5A—C12A—C2A | 45.0 (5) | O1B—C2B—C12B—C5B | 74.5 (6) |
C6A—C5A—C12A—C2A | −67.8 (5) | C3B—C2B—C12B—C5B | −45.6 (7) |
C2A—C12A—C13A—O3A | −100.4 (6) | C5B—C12B—C13B—O3B | 102.5 (9) |
C5A—C12A—C13A—O3A | 102.4 (6) | C2B—C12B—C13B—O3B | −96.6 (9) |
D—H···A | D—H | H···A | D···A | D—H···A |
O2A—H1A···O1Ai | 0.82 | 2.10 | 2.834 (4) | 149 |
O2B—H1B···O2A | 0.82 | 1.92 | 2.741 (6) | 176 |
Symmetry code: (i) x+1, y, z. |
Experimental details
Crystal data | |
Chemical formula | C15H22O3 |
Mr | 250.33 |
Crystal system, space group | Orthorhombic, P212121 |
Temperature (K) | 296 |
a, b, c (Å) | 7.0236 (5), 12.0644 (10), 32.475 (2) |
V (Å3) | 2751.8 (3) |
Z | 8 |
Radiation type | Mo Kα |
µ (mm−1) | 0.08 |
Crystal size (mm) | 0.52 × 0.38 × 0.10 |
Data collection | |
Diffractometer | Rigaku R-AXIS RAPID |
Absorption correction | – |
No. of measured, independent and observed [I > 2σ(I)] reflections | 22591, 2935, 2054 |
Rint | 0.057 |
(sin θ/λ)max (Å−1) | 0.606 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.074, 0.222, 1.05 |
No. of reflections | 2935 |
No. of parameters | 333 |
No. of restraints | 18 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.50, −0.29 |
Computer programs: PROCESS-AUTO (Rigaku, 1998), CrystalStructure (Rigaku/MSC, 2005), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), ORTEP-3 for Windows (Farrugia, 1997), WinGX (Farrugia, 1999).
D—H···A | D—H | H···A | D···A | D—H···A |
O2A—H1A···O1Ai | 0.82 | 2.10 | 2.834 (4) | 149 |
O2B—H1B···O2A | 0.82 | 1.92 | 2.741 (6) | 176 |
Symmetry code: (i) x+1, y, z. |
Acknowledgements
The work was supported by the Natural Science Foundation of Zhejiang Province, China (grant No. Y306253).
References
Chen, S.-Y., Zhang, C.-L., Chen, Y.-Z. & Lin, F.-C. (2008). Acta Cryst. E64, o702. Web of Science CSD CrossRef IUCr Journals Google Scholar
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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 title compound, deacetyl-trichodermin, is a trichodermin derivative. It shows potential bactericidal activity against Botrytis cinerea, Rhizoctonia solani and Pythium ultimum. Trichodermin is a member of the 4β-aceoxy-12,13-epoxytrichothecenes (Chen et al., 2008), which form a medically and economically important class of mycotoxins produced by fungi that spoil fruit and grain (Zhang et al., 2007). Many studies (Wei et al., 1974) show that trichodermin is a very potent inhibitor of protein synthesis in mammalian cells. Trichodermin inhibits the elongation and/or termination processes of protein synthesis.
The assymetric unit of the title compound contains two independent molecules with the similar structure. The molecule contains two six membered rings and one five membered ring. The five membered ring displays an envelope conformation. In the C12A-containing ring the C12A atom lies at the flap position and is 0.680 (3) Å out of the mean plane formed by the other four atoms (Fig. 1).
Two six membered rings show distinct conformation. The O1A-containing ring displays a usual chair conformation. The ring puckering analysis for the C9A-containing six membered ring suggests a half-chair conformation (Cremer & Pople, 1975). The typical C9A═C10A double bond (Table 1) suggests these atoms are sp2 hybridized.
The two independent molecules are linked by an O—H···O hydrogen bond, forming the supra-molecular dimer (Table 1); the dimers are linked by O—H···O hydeogen bond to form the supra-molecular chains running along the a axis in the crystal (Fig. 2).