4,5α-epoxy-3,6-dimethoxy-17-methyl-6α,14α-etheno-morphinane-7α,8α-dicarboxylic acid-anhydride 在
三溴化硼 作用下,
以
氯仿 、
甲苯 为溶剂,
反应 31.0h,
生成 (1S,2S,6R,14R,15R,16S,20R)-11,15-dihydroxy-18-[(2S)-1-hydroxy-3-methylbutan-2-yl]-5-methyl-13-oxa-5,18-diazaheptacyclo[13.5.2.12,8.01,6.02,14.016,20.012,23]tricosa-8(23),9,11,21-tetraene-17,19-dione