609-14-3
2-甲基乙酰乙酸乙酯
+
74-90-8
氰化氢
→
61491-71-2
ethyl 3-cyano-3-hydroxy-2-methylbutanoate
4030-22-2
3,4-Dimethyl-1,5-dihydro-2H-pyrrol-2-one