EX-A4328,MC-Gly-Gly-Phe-Gly-NH-CH2-O-CH2COOH,(S)-10-benzyl-23-(2,5-dioxo-2,5-dihydro-1H-pyrrol-1-yl)-6,9,12,15,18-pentaoxo-3-oxa-5,8,11,14,17-pentaazatricosanoic acid
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