(4S,8S,11R,12S,13S)-8,12-Bis-(tert-butyl-dimethyl-silanyloxy)-9,9,11,13-tetramethyl-4-[(E)-1-methyl-2-(2-methyl-thiazol-4-yl)-vinyl]-5-oxa-bicyclo[13.3.1]nonadeca-1(19),15,17-triene-6,10-dione 在
三氟乙酸 作用下,
以
二氯甲烷 为溶剂,
以72%的产率得到(4S,8S,11R,12S,13S)-8,12-dihydroxy-9,9,11,13-tetramethyl-4-[(E)-1-(2-methyl-1,3-thiazol-4-yl)prop-1-en-2-yl]-5-oxabicyclo[13.3.1]nonadeca-1(19),15,17-triene-6,10-dione