Process for the preparation of pantoprazole and intermediates therefor
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United States of America Patent
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Jun 13, 2006
Grant Date -
Mar 11, 2004
app pub date -
Oct 1, 2001
filing date -
Oct 2, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A novel process is described for the preparation of the active principle pantoprazole based on the use of novel intermediate compounds of general formula (I) ##STR00001## where X is an atom of halogen and n=0 or 1, so that when n=1, the intermediate compounds are methoxylated, and when n=0 said intermediate compounds are first oxidized to n=1 and thereafter are methoxylated.Also described are the novel intermediates, as well as the process for the preparation thereof.
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