在
palladium on activated charcoal
甲酸 、
氢气 作用下,
以
甲醇 为溶剂,
以91%的产率得到(2S)-2-[[(2S)-2-[[2-[[2-[[(2S)-2-[[2-[[(8R,9S,13S,14S,17S)-17-hydroxy-13-methyl-6,7,8,9,11,12,14,15,16,17-decahydrocyclopenta[a]phenanthren-3-yl]oxy]acetyl]amino]-3-(4-hydroxyphenyl)propanoyl]amino]acetyl]amino]acetyl]amino]-3-phenylpropanoyl]amino]-4-methylpentanamide