3β-ethylaminothiocarbonyloxy-5α-cholestane 在
碘 、
四甲基胍 作用下,
以
氯仿 为溶剂,
以84%的产率得到[(3S,5S,8R,9S,10S,13R,14S,17R)-10,13-dimethyl-17-[(2R)-6-methylheptan-2-yl]-2,3,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-yl] 1-[[C-[[(3S,5S,8R,9S,10S,13R,14S,17R)-10,13-dimethyl-17-[(2R)-6-methylheptan-2-yl]-2,3,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-yl]oxy]-N-ethylcarbonimidoyl]disulfanyl]-N-ethylmethanimidate