(3aR,6aS,11bR,11cS)-6a-Hydroxy-4-oxo-10-phenyl-3,3a,4,6a,7a,8,11a,11b-octahydro-7,9,11-trioxa-benzo[de]anthracene-11c-carboxylic acid methyl ester 、
碘甲烷 在
sodium hydroxide 、
四丁基碘化铵 作用下,
以
苯 为溶剂,
反应 1.0h,
以97%的产率得到(3aR,6aS,11bR,11cS)-6a-Methoxy-4-oxo-10-phenyl-3,3a,4,6a,7a,8,11a,11b-octahydro-7,9,11-trioxa-benzo[de]anthracene-11c-carboxylic acid methyl ester