(6R,7S)-5-Oxo-7-(3,4,5-trimethoxy-phenyl)-6,7-dihydro-5H-indeno[5,6-d][1,3]dioxole-6-carboxylic acid methyl ester 在
sodium hexamethyldisilazane 作用下,
反应 19.5h,
生成
(5R,6R)-5,6-Diallyl-7-oxo-5-(3,4,5-trimethoxy-phenyl)-6,7-dihydro-5H-indeno[5,6-d][1,3]dioxole-6-carboxylic acid methyl ester