tert-butyl 2-(2-(2-(2-(4-(5-((7R,8R,9S,13S,14S,17S)-3,17-bis(methoxymethoxy)-13-methyl-7,8,9,11,12,13,14,15,16,17-decahydro-6H-cyclopenta[a]phenanthren-7-yl)pentyl)piperazin-1-yl)ethoxy)ethoxy)ethoxy)acetate 在
盐酸 作用下,
以
四氢呋喃 、
水 为溶剂,
反应 7.0h,
以64%的产率得到2-(2-(2-(2-(4-(5-((7R,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-7-yl)pentyl)piperazin-1-yl)ethoxy)ethoxy)ethoxy)acetic acid