(1R,4S)-7,7-Dimethyl-3-oxo-2-oxa-bicyclo[2.2.1]heptane-1-carboxylic acid (7S,7aR,12bS)-9-methoxy-3-methyl-5,6,7,7a-tetrahydro-3H-8-oxa-3-aza-benzo[d]fluoren-7-yl ester 在
氢氧化钾 作用下,
以
乙醇 为溶剂,
以96%的产率得到(7S,7aR,12bS)-9-Methoxy-3-methyl-5,6,7,7a-tetrahydro-3H-8-oxa-3-aza-benzo[d]fluoren-7-ol