(2R)-2-bromo-3-dehydroquinic acid

2-bromo-3-dehydroshikimic acid

(4S,5R)-2-Bromo-4-(tert-butyl-dimethyl-silanyloxy)-5-hydroxy-3-oxo-cyclohex-1-enecarboxylic acid methyl ester

(4S,5R)-2-Bromo-4-(tert-butyl-dimethyl-silanyloxy)-3-oxo-5-(2,2,2-trifluoro-acetoxy)-cyclohex-1-enecarboxylic acid methyl ester

(4S,5R)-2-Bromo-4-(tert-butyl-dimethyl-silanyloxy)-5-hydroxy-3-oxo-cyclohex-1-enecarboxylic acid 4-methoxy-benzyl ester