1-methyl-1,4-dihydrochromeno[4,3-c]pyrazole-3-carboxylic acid 、
草酰氯 、
吡啶 、
2-氨基-4-氯吡啶 在
N-(4-chloropyridin-2-yl)-1-methyl-1,4-dihydrochromeno[4,3-c]pyrazole-3-carboxamide 作用下,
以
二氯甲烷 为溶剂,
以The title compound was obtained as a white solid with puritiy greater than 95% (25.4 mg, 0.07 mmol, 14% yield)的产率得到N-(4-chloropyridin-2-yl)-1-methyl-1,4-dihydrochromeno[4,3-c]pyrazole-3-carboxamide