33451-54-6
Ethyl cyano(tetrahydro-4H-pyran-4-ylidene)acetate
+
143-33-9
氰化钠
→
194862-82-3
4-(cyanomethyl)oxane-4-carbonitrile
194862-84-5
8-噁-2-氮杂螺[4.5]-3-癸酮