4-((1S,3R,5S)-3-Isopropenyl-14-methyl-9-oxo-12-oxa-13-aza-dispiro[4.0.5.3]tetradeca-7,10,13-trien-1-yloxymethyl)-benzoic acid methyl ester 在
双氧水 、
苄基三甲基氢氧化铵 作用下,
以
甲醇 为溶剂,
以87%的产率得到methyl 4-((((1S,1''R,3R,3''S,5S,5's,5''R,7''S)-3'-methyl-6''-oxo-3-(prop-1-en-2-yl)-4'',8''-dioxadispiro[cyclopentane-1,4'-isoxazole-5',2''-tricyclo[5.1.0.03,5]octan]-5-yl)oxy)methyl)benzoate