(2S)-6-[(7-methoxy-7-oxoheptanoyl)-phenylmethoxyamino]-2-[[(4S)-2-(2-phenylmethoxyphenyl)-4,5-dihydro-1,3-oxazole-4-carbonyl]amino]hexanoic acid 、
benzyl cobactin T 生成 methyl 7-oxo-7-[[(5S)-6-oxo-6-[(2S)-4-oxo-4-[[(3S)-2-oxo-1-phenylmethoxyazepan-3-yl]amino]butan-2-yl]oxy-5-[[(4S)-2-(2-phenylmethoxyphenyl)-4,5-dihydro-1,3-oxazole-4-carbonyl]amino]hexyl]-phenylmethoxyamino]heptanoate