[(1R,3S)-1-Benzyl-4-(tert-butyl-diphenyl-silanyloxy)-3-methyl-butyl]-carbamic acid tert-butyl ester

(2S,4R)-allyl 4-(2-((1R,3R)-1-acetoxy-3-((2S,3S)-2-amino-N,3-dimethylpentanamido)-4-methylpentyl)thiazole-4-carboxamido)-2-methyl-5-phenylpentanoate

(1R,2'R,1'''R,3'''S)-{1-[2'-{4''-[1'''-benzyl-4'''-(tert-butyldiphenylsilanyloxy)-3'''-methylbutylcarbamoyl]thiazol-2''-yl}-2'-(tert-butyldiphenylsilanyloxy)ethyl]-2-methylpropyl}carbamic acid benzyl ester

(1R,2'R,1'''R,3'''S)-[1-(2'-{4''-[1'''-benzyl-4'''-(tert-butyldiphenylsilanyloxy)-3'''-methylbutylcarbamoyl]thiazol-2''-yl}-2'-hydroxyethyl)-2-methylpropyl]carbamic acid benzyl ester

allyl (2S,4R)-4-(bis(tert-butoxycarbonyl)amino)-2-methyl-5-phenylpentanoate

allyl (2S,4R)-4-(2-((5S,8R,10R)-5-sec-butyl-1-(9H-fluoren-9-yl)-8-isopropyl-7-methyl-3,6,12-trioxo-2,11-dioxa-4,7-diazatridecan-10-yl)thiazole-4-carboxamido)-2-methyl-5-phenylpentanoate

di(tert-butyl) (2R,4S)-5-hydroxy-4-methyl-1-phenylpentan-2-yliminodicarbonate

(1R,3R,1''R,3''S)-acetic acid 1-[4'-(1''-benzyl-4''-hydroxy-3''-methylbutylcarbamoyl)thiazol-2'-yl]-3-benzyloxycarbonylamino-4-methylpentyl ester

(2S,4R)-allyl 4-(2-((1R,3R)-1-acetoxy-3-((2S,3S)-N,3-dimethyl-2-((R)-1-methylpiperidine-2-carboxamido)pentanamido)-4-methylpentyl)thiazole-4-carboxamido)-2-methyl-5-phenylpentanoate