8-ethyl-3-hydroxy-2-(1-phenylcyclopropyl)quinoline-4-carboxylic acid 、
5-三氟甲基靛红 、
2-(1-(4-chlorophenyl)cyclopropyl)-2-oxoethyl acetate 以to yield Compound 24 (0.041 g, 10% yield)的产率得到2-(1-(4-chlorophenyl)cyclopropyl)-3-hydroxy-6-(trifluoromethyl)quinoline-4-carboxylic acid