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3β,5-Dihydroxy-15β,16β-methylene-5β-androst-6-en-17-one

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

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

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✦ Synopsis

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 are trans-fused. In the crystal structure, intermolecular O-HÁ Á ÁO hydrogen bonds link the molecules into a ribbon along the b axis.

📜 SIMILAR VOLUMES

3β-Acetoxy-5-hydroxy-15β,16β-methylene-5
3β-Acetoxy-5-hydroxy-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 ⚖ 354 KB

In the crystal structure of the title compound, C 22 H 30 O 4 , rings A and C have slightly distorted chair conformations, ring B shows an approximate symmetric half-chair conformation and ring D is in an envelope conformation. The molecules are connected by weak intermolecular C-HÁ Á ÁO hydrogen bo

3β-Acet­oxy-7α-chloro-5,6β-ep­oxy-15β,16
3β-Acet­oxy-7α-chloro-5,6β-ep­oxy-15β,16β-methyl­ene-5β-androstan-17-one
✍ Zhou, Wei ;Hu, Wei-Xiao ;Xia, Chun-Nian 📂 Article 📅 2007 🏛 International Union of Crystallography 🌐 English ⚖ 103 KB

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.

3β-Acetoxy-14, 16α-dihydroxy-5β, 14β, 17
3β-Acetoxy-14, 16α-dihydroxy-5β, 14β, 17βH-ätiansäuremethylester
✍ M. S. Ragab; Horst Linde; Kuno Meyer 📂 Article 📅 1962 🏛 John Wiley and Sons 🌐 German ⚖ 269 KB

## Abstract Die Bereitung des 3β‐Acetoxy‐14, 16α‐dihydroxy‐5β, 14β, 17 βH‐ätiansäure‐methylesters wird beschrieben. Damit sind, was die Asymmetriezentren an C‐16 und C‐17 betrifft, alle 4 Stereoisomeren dieses Esters bekannt.