ethyl 3-(2,3-dihydrobenzo[b][1,4]dioxin-6-yl)-3-oxopropanoate 、
5-amino-4-(pyridin-3-yl)-1H-pyrazol-3-ol 在
甲醇 、 crude product 、
水 、
三氟乙酸 、
乙腈 、
5-(2,3-dihydrobenzo[b][1,4]dioxin-6-yl)-2-hydroxy-3-(pyridin-3-yl)pyrazolo[1,5-a]pyrimidin-7(4H)-one 作用下,
以
溶剂黄146 为溶剂,
反应 16.15h,
以This resulted in 26 mg (9%) of 5-(2,3-dihydrobenzo[b][1,4]dioxin-6-yl)-2-hydroxy-3-(pyridin-3-yl)pyrazolo[1,5-a]pyrimidin-7(4H)-one as a yellow-green solid的产率得到5-(2,3-dihydrobenzo[b][1,4]dioxin-6-yl)-2-hydroxy-3-(pyridin-3-yl)pyrazolo[1,5-a]pyrimidin-7(4H)-one