Process for the preparation of enantiomerically pure thienopyran derivatives
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United States of America Patent
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Oct 10, 1995
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N/A
app pub date -
Sep 30, 1994
filing date -
Dec 21, 1990
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Expired
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Abstract
A process for the preparation of enantiomerically pure thienopyran derivatives of the formula ##STR1## is described. The thienopyran derivatives are relaxants of smooth muscle tone and as such are useful in vascular tissue for the treatment of hypertension disease, angina and other vascular disorders characterized by poor regional perfusion.
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