16879-57-5
6-methyl-2-pyridin-3-yl-1H-pyrimidin-4-one
→
~42%
83551-42-2
4-氯-2-(3-吡啶)-6-甲基嘧啶
7356-60-7
3-甲脒基吡啶盐酸盐
+
105-45-3
乙酰乙酸甲酯
~38%
614-18-6
烟酸乙酯