| 1-{[(4r,7s,10s,16s,19r)-7-(2-amino-2-oxoethyl)-10-(3-amino-3-oxopropyl)-13-[(2s)-butan-2-yl]-19-{[(2,5-dioxo-2,5-dihydro-1h-pyrrol-1-yl)acetyl]amino}-16-(4-hydroxybenzyl)-6,9,12,15,18-pentaoxo-1,2-dithia-5,8,11,14,17-pentaazacycloicosan-4-yl]carbonyl}prol |
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