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3β-Acet­oxy-7α-chloro-5,6β-ep­oxy-15β,16β-methyl­ene-5β-androstan-17-one

✍ Scribed by Zhou, Wei ;Hu, Wei-Xiao ;Xia, Chun-Nian

Publisher
International Union of Crystallography
Year
2007
Tongue
English
Weight
103 KB
Volume
63
Category
Article
ISSN
1600-5368

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✦ Synopsis

In the title molecule, C 22 H 29 ClO 4 , all bond lengths and angles show normal values. Rings A and C have slightly distorted chair conformations, while rings B and D show envelope conformations. Weak intermolecular C-HÁ Á ÁO hydrogen bonds link the molecules into chains running along the b axis.

📜 SIMILAR VOLUMES

3β-Acet­oxy-6α-chloro-5β-hydroxy­androst
3β-Acet­oxy-6α-chloro-5β-hydroxy­androstan-17-one
✍ Xia, Chun-Nian ;Hu, Wei-Xiao ;Zhou, Wei ;Li, Bi-Wen 📂 Article 📅 2007 🏛 International Union of Crystallography 🌐 English ⚖ 228 KB

In the title molecule, C~21~H~31~ClO~4~, rings __A__, __B__ and __C__ have regular chair conformations, while ring __D__ has an envelope form. In the crystal structure, weak intermolecular C—H...O hydrogen bonds link the molecules into zigzag chains running along the __b__ axis.

Methyl 17,17-ethyl­enedi­oxy-7-oxo-15β,1
Methyl 17,17-ethyl­enedi­oxy-7-oxo-15β,16β-methyl­ene-5-androstene-3β-carboxyl­ate
✍ Zhou, Wei ;Hu, Wei-Xiao ;Xia, Chun-Nian 📂 Article 📅 2006 🏛 International Union of Crystallography 🌐 English ⚖ 214 KB

The title compound, C 24 H 32 O 5 , has rings A and C in regular chair, ring B in a distorted half-chair and ring D in an envelope conformation. The dioxolane ring adopts a twist conformation.

3β,5-Dihydroxy-15β,16β-methylene-5β-andr
3β,5-Dihydroxy-15β,16β-methylene-5β-androst-6-en-17-one
✍ Zhou, Wei ;Zhong, Guang-Xiang ;Hu, Wei-Xiao ;Xia, Chun-Nian 📂 Article 📅 2007 🏛 International Union of Crystallography 🌐 English ⚖ 565 KB

In the title molecule, C 20 H 28 O 3 , ring A has a regular chair conformation, while ring C has a slightly distorted chair conformation. Ring B shows an asymmetric half-chair conformation and ring D is in an envelope conformation. Rings A and B are cis-fused, while rings B and C and rings C and D a