3-hydroxy-2-(2-phenylpropan-2-yl)-7,8,9,10-tetrahydrobenzo[h]quinoline-4-carboxylic acid 、 、
6,7-二甲基-1H-吲哚-2,3-二酮 、 1-hydroxy-3-methyl-4-phenylbutan-2-one 以to yield the desired product (13.0 mg, 5.5%) as a yellow solid的产率得到3-hydroxy-7,8-dimethyl-2-(1-phenylpropan-2-yl)quinoline-4-carboxylic acid