((R)-2-(4-Chloro-2-fluoro-benzyloxy)-1-{[5-(4-chloro-phenyl)-3,3-dimethyl-1,1-dioxo-2,3-dihydro-1H-1λ6-isothiazol-4-ylmethyl]-ethyl-carbamoyl}-ethyl)-carbamic acid tert-butyl ester

[(R)-2-tert-Butoxycarbonylamino-3-(tert-butyl-diphenyl-silanyloxy)-propionylamino]-acetic acid allyl ester

(4R,5R)-5-Allyl-4-(tert-butyl-diphenyl-silanyloxymethyl)-2,2-dimethyl-oxazolidine-3-carboxylic acid tert-butyl ester

(2R,3S)-1-(tert-butoxycarbonyl)-2-hydroxymethyl-3-[3-((Z)-2-iodovinyl)-4-methoxy-phenoxy]-pyrrolidine

(E)-methyl 3-(4-((S)-2-((R)-2-((tert-butoxycarbonyl)amino)-3-hydroxypropanamido)-3-(1H-indol-3-yl)propoxy)phenyl)acrylate