The Beckmann fragmentation product, 3-methoxy-17-oxo-16,17-secoestra-1,3,5(10)-trien-16-nitrile (2) has been reduced by LAH giving the expected 3-methoxy-17-hydroxy-16,17-secoestra-1,3,5(10-trien-16-amine hydrochloride (3) and 3-methoxy-17-oxa-D-homoestra-1,3,5(10)-trien-16-ol (4), by a presumed neighbouring group participation of 17-OH group in the intermediary formed 16-imino derivative (A). The
贝克曼片段化产物3-甲氧基-17-氧代16,17-secoestra-1,3,5(10)-
三烯-16-腈(2)已通过
LAH还原,得到了预期的3-甲氧基-17-羟基-16,17-secoestra-1,3,5(10-trien-16-胺盐酸盐(3)和3-甲氧基-17-oxa-D-homoestra-1,3,5(10)-trien-16 -ol(4),通过在形成的中间体16-亚
氨基衍
生物(A)中推测17-OH基团的相邻基团参与,通过还原3-甲氧基-17-氧杂酸的另一种合成途径证明了4的结构-D-homoestra-1,3,5(10)-trien-16-one(7)与
二异丁基氢化铝。