2-Hydroxy-8,9-dihydro-6h-pyrido[2,1-b]quinazolin-11(7h)-one
8-Methyl-4-oxo-4h-pyrido[1,2-a]pyrimidine-3-carboxylic acid
Ethyl 8-methyl-4-oxo-4h-pyrido[1,2-a]pyrimidine-3-carboxylate
4-Oxo-4h-pyrido[1,2-a]pyrimidine-3-carboxylic acid
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![AM248566 | 1041382-97-1 | 2-Hydroxy-8,9-dihydro-6h-pyrido[2,1-b]quinazolin-11(7h)-one](https://qncdn.chemcd.cn/ampyridine/AM248566.png "AM248566 | 1041382-97-1 | 2-Hydroxy-8,9-dihydro-6h-pyrido[2,1-b]quinazolin-11(7h)-one")
![AM248565 | 34662-59-4 | 8-Methyl-4-oxo-4h-pyrido[1,2-a]pyrimidine-3-carboxylic acid](https://qncdn.chemcd.cn/ampyridine/AM248565.png "AM248565 | 34662-59-4 | 8-Methyl-4-oxo-4h-pyrido[1,2-a]pyrimidine-3-carboxylic acid")
![AM248564 | 34667-64-6 | Ethyl 8-methyl-4-oxo-4h-pyrido[1,2-a]pyrimidine-3-carboxylate](https://qncdn.chemcd.cn/ampyridine/AM248564.png "AM248564 | 34667-64-6 | Ethyl 8-methyl-4-oxo-4h-pyrido[1,2-a]pyrimidine-3-carboxylate")
![AM248563 | 34662-58-3 | 4-Oxo-4h-pyrido[1,2-a]pyrimidine-3-carboxylic acid](https://qncdn.chemcd.cn/ampyridine/AM248563.png "AM248563 | 34662-58-3 | 4-Oxo-4h-pyrido[1,2-a]pyrimidine-3-carboxylic acid")