Process for the preparation of an n-phenylacetic derivative of tetrahydrothieno(3,2-c)pyridine and its chemical intermediate
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United States of America Patent
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Apr 20, 1993
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N/A
app pub date -
Jul 3, 1991
filing date -
Jul 10, 1990
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Abstract
The invention relates to a process for the preparation of the compound of formula ##STR1## wherein a formylating agent is reacted with the compound of formula ##STR2## and wherein the compounds obtained are cyclised in the presence of an acid.
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