(1R,5S)-3-[2-((1S,6S)-3-Benzenesulfonylmethyl-6-benzyloxy-1-methyl-cyclohex-2-enyl)-acetyl]-2,2,4-trimethyl-6-oxa-bicyclo[3.2.1]oct-3-en-7-one oxime 在
N,N-二异丙基乙胺 作用下,
以
邻二氯苯 为溶剂,
反应 22.0h,
以24%的产率得到(1S,4R,5S,9S,13R)-4,16,17,17-tetramethyl-8-methylidene-5-phenylmethoxy-10-oxa-11-azatetracyclo[11.3.1.01,11.04,9]heptadec-15-ene-2,12-dione