132056-88-3
9-Methyl-3-(1H-tetrazol-5-yl)-4H-pyrido[1,2-a]pyrimidin-4-imine
→
~89%
69372-19-6
吡嘧司特
102781-19-1
3-cyano-4-imino-9-methyl-4H-pyrido[1,2-a]pyrimidine
~74%
1603-40-3
2-氨基-3-甲基吡啶
+
122-51-0
原甲酸三乙酯
109-77-3
丙二腈