Process of making ethyl[6-[ethyl-(2-hydroxypropyl)amino]-3-pyrid

Details Process of making ethyl[6-[ethyl-(2-hydroxypropyl)amino]-3-pyrid Process of making ethyl[6-[ethyl-(2-hydroxypropyl)amino]-3-pyrid

1984-04-16

1986-03-11

Daus, Donald G.

Organic compounds -- part of the class 532-570 series

Organic compounds

Four or more ring nitrogens in the bicyclo ring system

534753, C07D23720

Patent

active

045755523

ABSTRACT:
Preparation of ethyl {6-[ethyl-(2-hydroxypropyl)amino]-3-pyridazinyl} hydrazino carboxylate is disclosed from 3-chloro-6-hydrazinopyridazine in protected form, which is oxidized to yield the corresponding azo derivative, which is treated with ethyl-(2-hydroxypropyl)amine in the presence of strong bases, the corresponding amino derivative being subjected to reduction and deprotection, and finally acylated to yield ethyl {6-[ethyl-(2-hydroxypropyl)amino]-3-pyridazinyl} hydrazinocarboxylate.

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