ethyl 6-(1-triphenylmethyl-1H-imidazol-4-yl)imidazo[1,2-a]pyridine-2-carboxylate 、
6-(6-{[(1,1-dimethylethoxy)carbonyl]amino}pyrid-2-yl)imidazo[1,2-a]pyridine-2-carboxylic acid 以to give 346 mg of 6-(1-triphenylmethyl-1H-imidazol-4-yl)imidazo[1,2-a]pyridine-2-carboxylic acid的产率得到6-(1-triphenylmethyl-1H-imidazol-4-yl)imidazo[1,2-a]pyridine-2-carboxylic acid