[(2S,3S,5R)-3,5-Bis-(tert-butyl-dimethyl-silanyloxy)-2-(2-nitro-phenylselanylmethyl)-cyclohex-(Z)-ylidene]-acetic acid methyl ester
[(2R,3S,5R)-3,5-Bis-(tert-butyl-dimethyl-silanyloxy)-2-hydroxymethyl-cyclohex-(Z)-ylidene]-acetic acid methyl ester
methyl (Z,3S,5R)-[3,5-bis(tert-butyldimethylsilyl)oxy-2-methylenecyclohexylidene]acetate