重氮甲烷 、
(2R,2aS,3S,4aR,7R,8aS,8bS,11aR)-3-Methoxy-10-methyl-9-oxo-7-phenyl-1,2,2a,3,4a,8a,9,11a-octahydro-5H-4,6,8-trioxa-pentaleno[6a,1-a]naphthalene-2-carboxylic acid 以
乙醚 、
氯仿 为溶剂,
反应 0.08h,
生成 (2R,2aS,3S,4aR,7R,8aS,8bS,11aR)-3-Methoxy-10-methyl-9-oxo-7-phenyl-1,2,2a,3,4a,8a,9,11a-octahydro-5H-4,6,8-trioxa-pentaleno[6a,1-a]naphthalene-2-carboxylic acid methyl ester