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(S)-2-[((1R,4R,7S,12S,13R,14R,15S)-13,14,15-Tris-benzyloxy-4-benzyloxymethyl-2,5,9-trioxo-10,16-dioxa-3,6-diaza-bicyclo[10.3.1]hexadecane-7-carbonyl)-amino]-pentanedioic acid dibenzyl ester
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(S)-2-{[(1R,4R,7S,12S,13R,14R,15S)-13,14,15-Tris-benzyloxy-4-(4-heptyloxy-phenoxymethyl)-2,5,9-trioxo-10,16-dioxa-3,6-diaza-bicyclo[10.3.1]hexadecane-7-carbonyl]-amino}-pentanedioic acid dibenzyl ester
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