Thioacetic acid S-{4-[(8R,9S,13S,14S,17S)-3-(tert-butyl-dimethyl-silanyloxy)-17-hydroxy-13-methyl-7,8,9,11,12,13,14,15,16,17-decahydro-6H-cyclopenta[a]phenanthren-17-yl]-but-3-ynyl} ester 在
四丁基氟化铵 作用下,
以
四氢呋喃 为溶剂,
以75%的产率得到Thioacetic acid S-[4-((8R,9S,13S,14S,17S)-3,17-dihydroxy-13-methyl-7,8,9,11,12,13,14,15,16,17-decahydro-6H-cyclopenta[a]phenanthren-17-yl)-but-3-ynyl] ester