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Raja Dey (Institutionen för kemi- och bioteknik) ; S. Chanda ; A. Pal ; S. Roychowdhury
Acta Crystallographica Section E: Structure Reports Online (16005368). Vol. 61 (2005), 4,
[Artikel, refereegranskad vetenskaplig]

The synthetic steroid 21-acetoxy-17α-4-pregnene-3,20-dione, C 23H32O4, crystallizes with a single molecule in the asymmetric unit. The molecule contains four fused rings, typical of steroids. The cyclohexene ring A has nearly the conformation of a boat. One saturated six-membered ring, B, is intermediate between chair and half-chair conformations, while the other six-membered ring, C, is essentially a chair. The five-membered ring D tends towards a twist conformation. The ring junction A/B is quasi-trans, whereas the ring junctions B/C and C/D are both trans. The molecule is slightly convex towards the β side.

Denna post skapades 2010-01-27.
CPL Pubid: 111005


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Institutionen för kemi- och bioteknik (2005-2014)



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