(S)-2-[(E)-(1S,5R)-1-Hydroxy-1,5-dimethyl-8-((4R,5R)-2,2,5-trimethyl-[1,3]dioxolan-4-yl)-non-7-en-3-ynyl]-pyrrolidine-1-carboxylic acid benzyl ester 在
barium dihydroxide 作用下,
以
1,4-二氧六环 为溶剂,
反应 14.0h,
以77%的产率得到(E)-(2S,6R)-6-Methyl-2-(S)-pyrrolidin-2-yl-9-((4R,5R)-2,2,5-trimethyl-[1,3]dioxolan-4-yl)-dec-8-en-4-yn-2-ol