(4S,4'S)-4,4'-((4R,5R)-2,2-dimethyl-1,3-dioxolane-4,5-diyl)bis(thiazolidine-2-thione)

{(R)-1-[(4R,5R)-5-((R)-1-tert-Butoxycarbonylamino-2-hydroxy-ethyl)-2,2-dimethyl-[1,3]dioxolan-4-yl]-2-hydroxy-ethyl}-carbamic acid tert-butyl ester

N1,N6-di-succinimidyl-2R,5R-dibenzyloxy-3S,4S-dihydroxy-3,4-O-isopropylidenehexanediester

(5R,5'R)-5,5'-((4S,5S)-2,2-dimethyl-1,3-dioxolane-4,5-diyl)bis(thiazolidine-2-thione)

(5R,5'R)-5,5'-((4S,5S)-2,2-dimethyl-1,3-dioxolane-4,5-diyl)bis(N-(tert-butyl)-4,5-dihydrothiazol-2-amine)