Pharmacologically active 2-substituted 3-(2-ethoxyethyl) imidazo[4,5-b]pyridines and pharmaceutical compositions containing them
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United States of America Patent
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Apr 30, 1991
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N/A
app pub date -
May 7, 1990
filing date -
May 8, 1989
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Expired
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Abstract
2-substituted 3-(2-ethoxyethyl)imidazo[4,5-b] pyridine derivatives of the formula ##STR1## wherein n is an integer of from 1 to 5 inclusive R.sub.1 and R.sub.2 represent each a saturated or unsaturated alkyl radical containing from 1 to 4 carbon atoms or they form, together with the adjacent nitrogen atom an optionally substituted heterocyclic ring and the corresponding non-toxic pharmaceutically acceptable acid addition salts. The compounds of formula (I) are endowed with antiallergic and antihistaminic activity.
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