1-甲基-4-(甲氨基)哌啶 、
(3R,3aR)-8-fluoro-3-phenyl-3a,4-dihydro-3H-chromeno[4,3-c]pyrazole-2-carbonyl chloride 以
二氯甲烷 为溶剂,
以83%的产率得到(3RS,3aRS)-8-fluoro-3-phenyl-3a,4-dihydro-3H-chromeno[4,3-c]pyrazole-2-carboxylic acid methyl-(1-methyl-piperidin-4-yl)-amide