Process for producing 2,3-diamino-6-methoxypyridine
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United States of America Patent
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Aug 14, 2007
Grant Date -
Apr 20, 2006
app pub date -
Aug 3, 2005
filing date -
Oct 15, 2004
priority date (Note) -
Expired
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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.
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