甲胺 、
methyl (2S)-2-[[(2S)-2-[[2-[2-cyanoethyl-[[4-methoxy-3-[(2-methylpropanoylamino)carbamoyl]phenyl]carbamoyl]amino]ethyl-phenylcarbamoyl]amino]-3-phenylpropanoyl]amino]-4-methylpentanoate 以
甲醇 为溶剂,
以93%的产率得到(2S)-2-[[(2S)-2-[[2-[2-cyanoethyl-[[4-methoxy-3-[(2-methylpropanoylamino)carbamoyl]phenyl]carbamoyl]amino]ethyl-phenylcarbamoyl]amino]-3-phenylpropanoyl]amino]-N,4-dimethylpentanamide