tert-butyl (4S)-5-[[(1S)-1-carbamoyl-3-methyl-butyl]amino]-4-[4-[[7-[4-[[(1S)-1-[[(1S)-1-[[(1S)-1-methoxycarbonyl-2-methyl-propyl]carbamoyl]-3-methyl-butyl]carbamoyl]-2-methyl-propyl]amino]-4-oxo-butoxy]-2-naphthyl]oxy]butanoylamino]-5-oxo-pentanoate 在
三氟乙酸 作用下,
反应 6.0h,
以75%的产率得到(4S)-5-[[(1S)-1-carbamoyl-3-methyl-butyl]amino]-4-[4-[[7-[4-[[(1S)-1-[[(1S)-1-[[(1S)-1-methoxycarbonyl-2-methyl-propyl]carbamoyl]-3-methyl-butyl]carbamoyl]-2-methyl-propyl]amino]-4-oxo-butoxy]-2-naphthyl]oxy]butanoylamino]-5-oxo-pentanoic acid