Ethyl 3-(methylamino)-7,8-dihydropyrido[4,3-c]pyridazine-6(5h)-carboxylate
Benzyl 3-(methylamino)-7,8-dihydropyrido[4,3-c]pyridazine-6(5h)-carboxylate
8-Chloropyrido[2,3-d]pyridazine
8-Chloro-2,3-dihydro-1H-pyrido[2,3-b][1,4]oxazine
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![Ethyl 3-amino-7,8-dihydropyrido[4,3-c]pyridazine-6(5h)-carboxylate](https://qncdn.chemcd.cn/ampyridine/AM249120.png)
![AM249119 | 1474036-06-0 | Ethyl 3-(methylamino)-7,8-dihydropyrido[4,3-c]pyridazine-6(5h)-carboxylate](https://qncdn.chemcd.cn/ampyridine/AM249119.png "AM249119 | 1474036-06-0 | Ethyl 3-(methylamino)-7,8-dihydropyrido[4,3-c]pyridazine-6(5h)-carboxylate")
![AM249118 | 1824267-08-4 | Benzyl 3-(methylamino)-7,8-dihydropyrido[4,3-c]pyridazine-6(5h)-carboxylate](https://qncdn.chemcd.cn/ampyridine/AM249118.png "AM249118 | 1824267-08-4 | Benzyl 3-(methylamino)-7,8-dihydropyrido[4,3-c]pyridazine-6(5h)-carboxylate")
![AM249117 | 23590-59-2 | 8-Chloropyrido[2,3-d]pyridazine](https://qncdn.chemcd.cn/ampyridine/AM249117.png "AM249117 | 23590-59-2 | 8-Chloropyrido[2,3-d]pyridazine")
![AM249116 | 1198154-60-7 | 8-Chloro-2,3-dihydro-1H-pyrido[2,3-b][1,4]oxazine](https://qncdn.chemcd.cn/ampyridine/AM249116.png "AM249116 | 1198154-60-7 | 8-Chloro-2,3-dihydro-1H-pyrido[2,3-b][1,4]oxazine")