(6S,7R,10S)-7-Isobutyl-8-oxo-2-oxa-9-aza-bicyclo[10.2.2]hexadeca-1(15),12(16),13-triene-6,10-dicarboxylic acid 6-(benzyloxy-amide) 10-[((S)-2-tert-butoxy-1-methylcarbamoyl-ethyl)-amide]

(6S,7R,10S)-7-Isobutyl-8-oxo-2-oxa-9-aza-bicyclo[10.2.2]hexadeca-1(15),12(16),13-triene-6,10-dicarboxylic acid 6-(benzyloxy-amide) 10-{[(S)-2-(4-methoxy-phenyl)-1-methylcarbamoyl-ethyl]-amide}

tert-butyl (5S)-5-[({(8S,11R,12S)-12-[(hydroxyamino)carbonyl]-11-isobutyl-2,10-dioxo-1-oxa-3,9-diazacyclopentadecan-8-yl}carbonyl)amino]-6-(methylamino)-6-oxohexylcarbamate

(6S,9R,10S)-9-Isobutyl-6-methylcarbamoyl-8-oxo-1,7-diaza-cyclotridecane-10-carboxylic acid

(6S,9R,10S)-9-Isobutyl-6-methylcarbamoyl-8-oxo-1-trifluoromethanesulfonyl-1,7-diaza-cyclotridecane-10-carboxylic acid tert-butyl ester