(R)-3-tert-Butoxycarbonylamino-3-{5-[(1S,4R,5R)-5-(tert-butyl-dimethyl-silanyloxy)-4-hydroxy-4-hydroxymethyl-3-iodo-cyclopent-2-enyloxy]-6-chloro-pyridin-2-yl}-propionic acid methyl ester

Acetic acid (1R,2R,5S)-2-acetoxymethyl-2,5-dihydroxy-3-iodo-cyclopent-3-enyl ester

(1R,4S,5R)-4,5-Bis-(tert-butyl-dimethyl-silanyloxy)-1-hydroxymethyl-2-iodo-cyclopent-2-enol

(5R,6R,7S)-9-Iodo-2,2-dimethyl-1,3-dioxa-spiro[4.4]non-8-ene-6,7-diol