In the title molecule, C~21~H~26~O~2~, there are two C=C bonds [1.321 (4) and 1.334 (4) Å], which contribute to the planarity of ring __A__ along with the carbonyl group. Rings __B__ and __C__ have regular chair conformations, while ring __D__ has an envelope conformation. In the crystal structure,
✦ LIBER ✦
17β-Ethynyl-17α-hydroxyandrosta-1,4-dien-3-one
✍ Scribed by Zhang, Qiu-Xia ;Shen, Hua-Feng ;Mao, Ting-Ting
- Publisher
- International Union of Crystallography
- Year
- 2007
- Tongue
- English
- Weight
- 108 KB
- Volume
- 63
- Category
- Article
- ISSN
- 1600-5368
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
17α-Ethynyl-17β-hydroxyandrosta-1,4-die
✍
Sheng, Liu-Qing ;Liang, Wan-Gen ;Chen, Gang ;Shen, Hua-Feng
📂
Article
📅
2007
🏛
International Union of Crystallography
🌐
English
⚖ 259 KB
ChemInform Abstract: Microbiological Syn
✍
E. V. Popova; K. N. Gabinskaya; S. D. Shuvalova; S. A. Dovzhenko; V. A. Andryush
📂
Article
📅
2010
🏛
John Wiley and Sons
⚖ 29 KB
👁 1 views
Iodovinyl progestins: Synthesis of 17α-i
✍
R.N. Hanson; F. Murphy; M. Ghoshal; C. Rosenthal
📂
Article
📅
1989
🏛
John Wiley and Sons
🌐
French
⚖ 60 KB
17-Ethynyl-3,17α-dimethoxy-5β-estra-1,3,
✍
Choudhary, M. Iqbal ;Musharraf, Syed Ghulam ;Anjum, Shazia ;Rahman, Azhar Abul ;
📂
Article
📅
2003
🏛
International Union of Crystallography
🌐
English
⚖ 264 KB
Synthesis of high specific activity 17α-
✍
P. Droescher; J. Röomer
📂
Article
📅
1995
🏛
John Wiley and Sons
🌐
French
⚖ 377 KB
## Abstract An improved synthesis of the tritium labelled form of the new pharmacon DIENOGEST is described. The [^14^α,15α‐^3^‐H]DIENOGEST was obtained with a specific activity of 51 Ci/mmol and a radiochemical purity > 98%.
17α-Hydroxypregna-1,4-diene-3,20-dione
✍
Sheng, Liu-Qing ;Pan, Han-Min ;Chen, Chao-Tian ;Chen, Gang
📂
Article
📅
2006
🏛
International Union of Crystallography
🌐
English
⚖ 127 KB
In the title steroid compound, C 21 H 28 O 3 , the cyclohexadiene ring has a planar structure, while the cyclopentane ring displays an envelope configuration. Classical O-HÁ Á ÁO and weak C-HÁ Á ÁO hydrogen bonding helps to stabilize the crystal structure.