(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 10-methyl ester

6-tert-butyl 10-methyl (6S,7R,10S)-7-isobutyl-8-oxo-2-oxa-9-azabicyclo[10.2.2]hexadeca-1(14),12,15-triene-6,10-dicarboxylate

tert-butyl (2R,3S)-2-(3-bromopropyl)-3-({[(1S)-1-(4-hydroxybenzyl)-2-methoxy-2-oxoethyl]amino}carbonyl)-5-methylhexanoate

methyl (6S,7R,10S)-6-{[(benzyloxy)amino]carbonyl}-7-isobutyl-8-oxo-2-oxa-9-azabicyclo[10.2.2]hexadeca-1(14),12,15-triene-10-carboxylate