7460-56-2
2-羟基嘧啶-4-羧醛肟
→
~89%
75833-38-4
2-氯-4-氰基嘧啶
950514-12-2
2-oxo-1H-pyrimidine-6-carbaldehyde
557-21-1
氰化锌
+
3934-20-1
2,4-二氯嘧啶