2-(4-methoxy-benzyl)-oxazole-4-carboxylic acid 、 、 2-(4-Methoxy-benzyl)-thiazole-4-carboxylic acid[1-(3,4-dimethoxy-phenyl)-cyclopentylmethyl]-amide 以the amide (30 mg, 66%) was obtained as a white solid的产率得到2-(4-methoxy-benzyl)-oxazole-4-carboxylic acid[1-(3,4-dimethoxy-phenyl)-cyclopentylmethyl]-amide