The present invention refers to a new process for preparing N-2,3,4,5-substituted-1H-pyrrol-1-yl)-6-substituted amino-3-pyridazineamine, known as antihypertensive agents. The process is characterized in that a suitable 3,6-dihalogenopyridazine is reacted with hydrazine hydrate or other hydrazine derivatives of formula NH2 NHR, the obtained compound is reacted with a suitable dicarbonyl compound yielding first an alcandione-bis-[6-halogen-3-pyridazinyl]-hydrazone, and then a 6-halogen-3-pyrrolylpyridazineamine derivative which is in turn reacted with an amine to yield the desired compounds.
本发明涉及一种制备 N-2,3,4,5-取代-1H-
吡咯-1-基)-6-取代
氨基-3-
哒嗪胺的新工艺,这种胺被称为抗高血压药。该工艺的特点是将一种合适的 3,6-二卤
哒嗪与
水合
肼或其他式 NH2 NHR 的
肼衍
生物反应,得到的化合物与一种合适的二羰基化合物反应,首先得到一种阿坎二酮-双-[6-卤素-3-
哒嗪基]-腙,然后得到一种 6-卤素-3-
吡咯哒嗪胺衍
生物,该衍
生物又与胺反应,得到所需的化合物。