64-67-5
硫酸二乙酯
+
86969-22-4
2-(4-methylphenyl)-1H-pyrazolo[1,5-a]pyrimidin-7-one
→
~34%
86969-23-5
4-ethyl-2-(4-methylphenyl)pyrazolo[1,5-a]pyrimidin-7-one