Crystal structure of 3β-acetoxyandrosta-5,16-dien-17-yl trifluoromethanesulfonate

Abstract

The title compound, C22H29F3O5S [systematic name: (3S,8R,9S,10R,13S,14S)-10,13-dimethyl-17-(trifluoromethylsulfonyloxy)-2,3,4,7,8,9,10,11,12,13,14,15-dodecahydro-1H-cyclopenta[a]phenanthren-3-yl acetate], contains a fused four-ring steroidal system. Rings A and C adopt a chair conformation, while rings B and D adopt half-chair and envelope (with the fused CH atom as the flap) conformations, respectively. In the crystal, weak intermolecular C—H...O interactions link the molecules into layers parallel to the ab plane.

Keywords

• crystal structure
• chiral space group
• 3β-acetoxyandrosta-5,16-dien-17-yl trifluoromethanesulfonate
• C—H...O interactions