5-amino-4-(thiazol-2-yl)thiophene-3-carbonitrile 、 2-(2-oxo-3,4-dihydro-1,5-naphthyridin-1(2H)-yl)acetic acid 在
N-(4-cyano-3-(thiazol-2-yl)thiophen-2-yl)-2-(2-oxo-3,4-dihydro-1,5-naphthyridin-1(2H)-yl)acetamide 、 crude product 、
methanol-dichloromethane 作用下,
以to give N-(4-cyano-3-(thiazol-2-yl)thiophen-2-yl)-2-(2-oxo-3,4-dihydro-1,5-naphthyridin-1(2H)-yl)acetamide (5.4 mg) as a white solid的产率得到N-(4-cyano-3-(thiazol-2-yl)thiophen-2-yl)-2-(2-oxo-3,4-dihydro-1,5-naphthyridin-1(2H)-yl)acetamide