Process for producing 2,3-diamino-6-methoxypyridine

Details Process for producing 2,3-diamino-6-methoxypyridine Process for producing 2,3-diamino-6-methoxypyridine

2007-08-14

2007-08-14

Andres, Janet L. (Department: 1625)

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

Reexamination Certificate

active

11195737

ABSTRACT:
The present invention relates to a novel process for producing 2,3-diamino-6-methxoypyridine. The process comprises neutralizing 2,3-diamino-6-methoxy pyridine dihydrochloride, which, in turn, is prepared by the reduction of 2-amino-6-methoxy-3-nitropyridine. The 2-amino-6-methoxy-3-nitropyridine is further prepared by methoxylation of 2-amino-6-chloro-3-nitropyridine by sodium methoxide in methanol.

REFERENCES:
patent: 1453278 (2003-11-01), None
Casreact Abstract 142:430268.

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