Ethers and thioethers having therapeutical activity, their preparation and pharmaceutical compositions containing them
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United States of America Patent
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May 18, 1993
Issued Date -
N/A
app pub date -
Jul 30, 1990
filing date -
Aug 14, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Compounds of formula I ##STR1## wherein Ar is an optionally substituted phenyl ring; B is a single bond, a group --(CH.sub.2 OCH.sub.2).sub.n being n=or 2, a a 2,4-disubstituted-1,3-dioxolane ring or a 2,4-disubstituted-1,3-thioxolane ring, R is a single bond, an optionally substituted methylene or ethylene group and T is 2, 3- or 4-pyridyl, an optionally salified or esterified carboxy group or a carboxyamide group. Said compounds are useful in treatment of respiratory diseases.
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