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

(6S,7R,10S)-7-Isobutyl-8-oxo-2-oxa-9-aza-bicyclo[12.2.2]octadeca-1(17),14(18),15-triene-6,10-dicarboxylic acid 10-methyl ester

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

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

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