9-methoxy-4-oxo-6,7-dihydro-4H-pyrimido[2,1-a]isoquinoline-3-carboxylic acid ethyl ester 在
钯 乙醇 作用下,
以
4-异丙基甲苯 为溶剂,
反应 7.0h,
以to give flocculent colorless needles of ethyl 9-methoxy-4-oxo-4H-pyrimido[2,1-a]isoquinoline-3-carboxylate的产率得到9-methoxy-4-oxo-4
H-pyrimido[2,1-
a]isoquinoline-3-carboxylic acid ethyl ester