(2S)-1-[(2S)-2-[[(2S)-2-[[2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-amino-3-(1H-imidazol-5-yl)propanoyl]amino]-3-phenylpropanoyl]amino]-3-hydroxypropanoyl]amino]-3-phenylpropanoyl]amino]acetyl]amino]-4-methylpentanoyl]amino]-5-(diaminomethylideneamino)pentanoyl]-N-(2-amino-2-oxoethyl)pyrrolidine-2-carboxamide 生成
(pyro)Glu-His-Phe-Ser-Phe-Gly-Leu-Arg-Pro-Gly-NH2