(1R,2R)-2-{4'-[(2-phenyl-5-trifluoromethyl-oxazole-4-carbonyl)-amino]-biphenyl-4-carbonyl}-cyclopentanecarboxylic acid 、 2-{4'-[(2-Phenyl-5-trifluoromethyl-oxazole-4-carbonyl)-amino]-biphenyl-4-carbonyl}-cyclohexanecarboxylic acid 、
2-苯基-5-(三氟甲基)唑-4-羧酸 、 trans-2-(4'-amino-biphenyl-4-carbonyl)-cyclohexanecarboxylic acid 以to afford (1R,2R)-2-{4′-[(2-phenyl-5-trifluoromethyl-oxazole-4-carbonyl)-amino]-biphenyl-4-carbonyl}-cyclohexanecarboxylic acid (or enantiomer)的产率得到(1R,2R)-2-{4'-[(2-phenyl-5-trifluoromethyl-oxazole-4-carbonyl)-amino]-biphenyl-4-carbonyl}-cyclohexanecarboxylic acid