4-(3-hydroformyl-4-hydroxy-5-t-butylphenyl)benzoic acid 、
5'-[(2-amino-cyclohexylimino)-methyl]-3'-tert-butyl-4'-hydroxy-biphenyl-4-carboxylic acid 在
吡啶 作用下,
以95%的产率得到5',5''-(1E,1'E)-(1R,2R)-cyclohexane-1,2-diylbis(azan-1-yl-1-ylidene)bis(methan-1-yl-1-ylidene)bis(3'-tert-butyl-4'-hydroxybiphenyl-4-carboxylic acid)