7-Methoxypyrido[3,2-d]pyrimidin-4(3h)-one
5-Chloro-2-methoxypyrido[3,4-b]pyrazine
2,5-Dichloropyrido[3,4-b]pyrazine
5-Chloropyrido[3,4-b]pyrazin-2(1H)-one
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![4-Oxo-3,4-dihydropyrido[3,2-d]pyrimidine-7-carbonitrile](https://qncdn.chemcd.cn/ampyridine/AM248136.png)
![AM248135 | 1600511-85-0 | 7-Methoxypyrido[3,2-d]pyrimidin-4(3h)-one](https://qncdn.chemcd.cn/ampyridine/AM248135.png "AM248135 | 1600511-85-0 | 7-Methoxypyrido[3,2-d]pyrimidin-4(3h)-one")
![AM248134 | 1600511-78-1 | 5-Chloro-2-methoxypyrido[3,4-b]pyrazine](https://qncdn.chemcd.cn/ampyridine/AM248134.png "AM248134 | 1600511-78-1 | 5-Chloro-2-methoxypyrido[3,4-b]pyrazine")
![AM248133 | 1600511-80-5 | 2,5-Dichloropyrido[3,4-b]pyrazine](https://qncdn.chemcd.cn/ampyridine/AM248133.png "AM248133 | 1600511-80-5 | 2,5-Dichloropyrido[3,4-b]pyrazine")
![AM248132 | 1600511-79-2 | 5-Chloropyrido[3,4-b]pyrazin-2(1H)-one](https://qncdn.chemcd.cn/ampyridine/AM248132.png "AM248132 | 1600511-79-2 | 5-Chloropyrido[3,4-b]pyrazin-2(1H)-one")