3-Amino-2-(5-chloropyridin-3-yl)pyrido[2,3-d]pyrimidin-4(3h)-one
3-Amino-2-(3-fluorophenyl)pyrido[2,3-d]pyrimidin-4(3h)-one
3-Amino-2-(2-fluorophenyl)pyrido[2,3-d]pyrimidin-4(3h)-one
3-Amino-2-(4-fluorophenyl)pyrido[2,3-d]pyrimidin-4(3h)-one
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![3-Amino-2-(5-methoxypyridin-3-yl)pyrido[2,3-d]pyrimidin-4(3h)-one](https://qncdn.chemcd.cn/ampyridine/AM248169.png)
![AM248168 | 1123782-56-8 | 3-Amino-2-(5-chloropyridin-3-yl)pyrido[2,3-d]pyrimidin-4(3h)-one](https://qncdn.chemcd.cn/ampyridine/AM248168.png "AM248168 | 1123782-56-8 | 3-Amino-2-(5-chloropyridin-3-yl)pyrido[2,3-d]pyrimidin-4(3h)-one")
![AM248167 | 1363405-34-8 | 3-Amino-2-(3-fluorophenyl)pyrido[2,3-d]pyrimidin-4(3h)-one](https://qncdn.chemcd.cn/ampyridine/AM248167.png "AM248167 | 1363405-34-8 | 3-Amino-2-(3-fluorophenyl)pyrido[2,3-d]pyrimidin-4(3h)-one")
![AM248166 | 1363405-19-9 | 3-Amino-2-(2-fluorophenyl)pyrido[2,3-d]pyrimidin-4(3h)-one](https://qncdn.chemcd.cn/ampyridine/AM248166.png "AM248166 | 1363405-19-9 | 3-Amino-2-(2-fluorophenyl)pyrido[2,3-d]pyrimidin-4(3h)-one")
![AM248165 | 1363404-77-6 | 3-Amino-2-(4-fluorophenyl)pyrido[2,3-d]pyrimidin-4(3h)-one](https://qncdn.chemcd.cn/ampyridine/AM248165.png "AM248165 | 1363404-77-6 | 3-Amino-2-(4-fluorophenyl)pyrido[2,3-d]pyrimidin-4(3h)-one")