34859-64-8
5-氨基-4-异噁唑甲酸乙酯
+
37128-99-7
N-methyl2-piperidone diethyl acetal
→
~77%
75263-97-7
(E)-2-cyano-3-ethoxy-3-hydroxy-N-(1-methylpiperidin-2-ylidene)prop-2-enamide