(6S,7R,10S)-6-Benzyloxycarbamoyl-7-isobutyl-8-oxo-2-oxa-9-aza-bicyclo[11.2.2]heptadeca-1(16),13(17),14-triene-10-carboxylic acid methyl ester

(2S,3R)-2-{3-[((S)-5-Benzyloxycarbonylamino-5-methoxycarbonyl-pentyl)-methyl-carbamoyloxy]-propyl}-3-isobutyl-succinic acid 4-benzyl ester 1-tert-butyl ester

Val-NHMe hydrochloride

(8S,11R,12S)-11-Isobutyl-3-methyl-2,10-dioxo-1-oxa-3,9-diaza-cyclopentadecane-8,12-dicarboxylic acid 12-tert-butyl ester 8-methyl ester

(4S,5R)-5-[({(1S)-5-{[(benzyloxy)carbonyl]amino}-1-[(methylamino)carbonyl]pentyl}amino)carbonyl]-4-(tert-butoxycarbonyl)-7-methyloctanoic acid