英文别名
                        (2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-4-amino-2-[(2-aminoacetyl)amino]-4-oxobutanoyl]amino]propanoyl]amino]propanoyl]amino]propanoyl]amino]propanoyl]amino]-5-(diaminomethylideneamino)pentanoyl]amino]-5-(diaminomethylideneamino)pentanoic acid