(1R,2R,5S)-2-Formyl-1,2-dimethyl-5-((3aR,4R,6R,7aS)-2,2,4-trimethyl-tetrahydro-[1,3]dioxolo[4,5-c]pyran-6-yloxymethyl)-cyclopentanecarboxylic acid benzyl ester 在
palladium on activated charcoal
氢气 作用下,
以
乙酸乙酯 为溶剂,
以90%的产率得到(1R,2R,5S)-2-Formyl-1,2-dimethyl-5-((3aR,4R,6R,7aS)-2,2,4-trimethyl-tetrahydro-[1,3]dioxolo[4,5-c]pyran-6-yloxymethyl)-cyclopentanecarboxylic acid