(1S,2S,5R,6S,7S)-2,6-Bis-(tert-butyl-dimethyl-silanyloxy)-3,3,5,7-tetramethyl-4-oxo-cycloundecanecarboxylic acid (R)-1-[(E)-1-methyl-2-(2-methyl-thiazol-4-yl)-vinyl]-but-3-enyl ester 在
三氟乙酸 作用下,
以
二氯甲烷 为溶剂,
反应 96.0h,
以77%的产率得到[(1E,3R)-2-methyl-1-(2-methyl-1,3-thiazol-4-yl)hexa-1,5-dien-3-yl] (1S,2S,5R,6S,7S)-2,6-dihydroxy-3,3,5,7-tetramethyl-4-oxocycloundecane-1-carboxylate