The crystal structures of 13-ethyl-gona-1(10)-ene-11α,17β-diacetate (3b) and 13-ethyl-10α-gona-4-ene-11α,17β-diacetate (5b), two steroidal monoenes obtained as minor products from the reduction, then acetylation, of the aromatic A ring of 13-ethyl-3-ethoxy-gona-1,3,5(10)-triene-11α,17β-diol (1), were determined by X-ray diffraction. The conformations of the rings A, B, C, and D and the unusual stereochemistry at C-10 of the 10α-gona-4-ene (5b) are discussed.
Crystal Structure of Steroidal Monoenes Obtained by reduction of the Aromatic A Ring of 13-Ethyl-3-Ethoxy-Gona-1,3,5(10)-Triene-11alpha,17beta-Diol / E. Modica, F. Compostella, D. Colombo, F. Ronchetti, A. Scala, B. Bovio. - In: STEROIDS. - ISSN 0039-128X. - 68:4(2003), pp. 367-372.
Crystal Structure of Steroidal Monoenes Obtained by reduction of the Aromatic A Ring of 13-Ethyl-3-Ethoxy-Gona-1,3,5(10)-Triene-11alpha,17beta-Diol
E. ModicaPrimo
;F. CompostellaSecondo
;D. Colombo;F. Ronchetti;A. ScalaPenultimo
;
2003
Abstract
The crystal structures of 13-ethyl-gona-1(10)-ene-11α,17β-diacetate (3b) and 13-ethyl-10α-gona-4-ene-11α,17β-diacetate (5b), two steroidal monoenes obtained as minor products from the reduction, then acetylation, of the aromatic A ring of 13-ethyl-3-ethoxy-gona-1,3,5(10)-triene-11α,17β-diol (1), were determined by X-ray diffraction. The conformations of the rings A, B, C, and D and the unusual stereochemistry at C-10 of the 10α-gona-4-ene (5b) are discussed.
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