(R)-1-((3S,5S,8R,9S,10S,13R,14S,16S,17R)-3,16-Bis-dimethylamino-13-hydroxymethyl-10-methyl-hexadecahydro-cyclopenta[a]phenanthren-17-yl)-ethanol 、
碘甲烷 以
丙酮 为溶剂,
反应 24.0h,
以95%的产率得到di-iodomethylate de N,N-bisdimethylamino-3β, 16β, dihydroxy-18, 20 R, pregnane-5α