(4bR,8aS,9R)-11-(cyclopropylmethyl)-8a-hydroxy-3-methoxy-8,8a,9,10-tetrahydro-5H-9,4b-(epiminoethano)phenanthren-6(7H)-one 、
苯肼,盐酸盐 在
溶剂黄146 作用下,
反应 2.5h,
以98%的产率得到(1R,13S,14R)-24-(cyclopropylmethyl)-19-methoxy-4,24-diazahexacyclo[12.7.3.01,13.03,11.05,10.016,21]tetracosa-3(11),5,7,9,16(21),17,19-heptaen-13-ol