[S-(R*,R*)]-4,4'-[(9,10-dihydro-5,8-dihydroxy-9,10-dioxo-1,4-anthracenediyl)bis(imino-2,1-ethanediylimino)]bis[3-amino-4-oxobutanoic acid]bis(1,1-dimethylethyl)ester 生成 tert-butyl (3S)-3-[[(2S)-2-(9H-fluoren-9-ylmethoxycarbonylamino)-4-methylpentanoyl]amino]-4-[2-[[4-[2-[[(2S)-2-[[(2S)-2-(9H-fluoren-9-ylmethoxycarbonylamino)-4-methylpentanoyl]amino]-4-[(2-methylpropan-2-yl)oxy]-4-oxobutanoyl]amino]ethylamino]-5,8-dihydroxy-9,10-dioxoanthracen-1-yl]amino]ethylamino]-4-oxobutanoate