4-cyano-1H-imidazole-2-carboxylic acid [4-bromo-2-(4,4-dimethyl-cyclohex-1-enyl)-phenyl]-amide 、
1,5-bis-(tert-butyl-dimethyl-silanyloxymethyl)-8-oxa-bicyclo[3.2.1]oct-6-en-3-one 以28%的产率得到4-cyano-1H-imidazole-2-carboxylic acid [4-[(3-exo)-3-hydroxy-1,5-bis-(tert-butyl-dimethyl-silanyloxymethyl)-8-oxa-bicyclo[3.2.1]oct-6-en-3-yl]-2-(4,4-dimethyl-cyclohex-1-enyl)-phenyl]-amide