3 beta-Acetoxy-19-hydroxy- Delta(5)-pregnen-20-one

被引:0
作者
zu Greffen, Aike Meier [1 ]
Kranz, Darius P. [1 ]
Neudoerfl, Joerg-M. [1 ]
Schmalz, Hans-Guenther [1 ]
机构
[1] Univ Cologne, Dept Chem, Greinstr 4, D-50939 Cologne, Germany
关键词
data-to-parameter ratio = 9.9; mean σ(C-C) = 0.003 Å; R factor = 0.037; single-crystal X-ray study; T = 100 K; wR factor = 0.079;
D O I
10.1107/S1600536813002493
中图分类号
O7 [晶体学];
学科分类号
0702 ; 070205 ; 0703 ; 080501 ;
摘要
In the title compound, C23H34O4, the C/D and D/E rings are trans fused and the A/B ring possesses an anti fusion. The two cyclohexane rings adopt a chair conformation while the cyclohexene ring exhibits a half- chair conformation. The cyclopentane ring displays an envelope conformation with the C atom bearing the methyl group as the flap. In the crystal, the molecules are linked by O-H...O hydrogen bonds, forming chains along the b axis.
引用
收藏
页码:O313 / +
页数:10
相关论文
共 18 条
[1]   The Cambridge Structural Database: a quarter of a million crystal structures and rising [J].
Allen, FH .
ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE, 2002, 58 (3 PART 1) :380-388
[2]   Cortistatins A, B, C, and D, anti-angiogenic steroidal alkaloids, from the marine sponge Corticium simplex [J].
Aoki, S ;
Watanabe, Y ;
Sanagawa, M ;
Setiawan, A ;
Kotoku, N ;
Kobayashi, M .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2006, 128 (10) :3148-3149
[3]   Unusual C25 steroid isomers with bicyclo[4.4.1]A/B rings from a volcano ash-derived fungus Penicillium citrinum [J].
Du, Lin ;
Zhu, Tianjiao ;
Fang, Yuchun ;
Gu, Qianqun ;
Zhu, Weiming .
JOURNAL OF NATURAL PRODUCTS, 2008, 71 (08) :1343-1351
[4]   Synthesis of the core structure of the cyclocitrinols via SmI2-mediated fragmentation of a cyclopropane precursor [J].
El Sheikh, Sherif ;
Greffen, Aike Meier zu ;
Lex, Johann ;
Neudoerfl, Joerg-Martin ;
Schmalz, Hans-Guenther .
SYNLETT, 2007, (12) :1881-1884
[5]  
Fieser & Fieser, 1961, PLEAS SUPPL FULL REF
[6]  
Flyer AN, 2010, NAT CHEM, V2, P886, DOI [10.1038/NCHEM.794, 10.1038/nchem.794]
[7]  
HALPERN O, 1963, CHEM IND-LONDON, P39
[8]   Steroids: partial synthesis in medicinal chemistry [J].
Hanson, James R. .
NATURAL PRODUCT REPORTS, 2010, 27 (06) :887-899
[9]   INTRAMOLECULAR FREE-RADICAL REACTIONS [J].
HEUSLER, K ;
KALVODA, J .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 1964, 3 (08) :525-&
[10]  
Hooft R.W.W., 1998, COLLECT