Synthesis and spectroscopic peculiarities of 11β-aryl-estra-4,8(14),9-trienes and 11β-aryl-estra-5(10),6,8-trienes
摘要:
A synthetic strategy is disclosed for the introduction of an additional conjugate 8(14) double bond into 11 beta-arylsubstituted antiprogestins of the RU 486 type. Ring B aromatic analogues are obtained as by-products. Both structural variations markedly affect the rotational behaviour of the 11 beta-phenyl residue. (C) 1997 Elsevier Science Ltd.
Synthesis and spectroscopic peculiarities of 11β-aryl-estra-4,8(14),9-trienes and 11β-aryl-estra-5(10),6,8-trienes
摘要:
A synthetic strategy is disclosed for the introduction of an additional conjugate 8(14) double bond into 11 beta-arylsubstituted antiprogestins of the RU 486 type. Ring B aromatic analogues are obtained as by-products. Both structural variations markedly affect the rotational behaviour of the 11 beta-phenyl residue. (C) 1997 Elsevier Science Ltd.