Heterocyclic carboxylic acid derivatives
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United States of America Patent
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Mar 22, 2005
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N/A
app pub date -
Jan 28, 2002
filing date -
Apr 28, 1999
priority date (Note) -
Expired
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Abstract
Compounds or salts thereof represented by the formula (I) wherein R.sup.1 represents hydrogen atom, a C.sub.1-6 alkyl group, a C.sub.1-6 alkenyl group, or an acyl group, R.sup.2 and R.sup.3 represent hydrogen atom or a C.sub.1-6 alkyl group, or adjacent R.sup.2 and R.sup.3 may combine to form 5- to 7-membered ring, R.sup.4 represents hydrogen atom, hydroxyl group, a C.sub.1-6 alkoxyl group, a C.sub.1-6 alkyl group, HAr represents a heteroaryl-diyl group consisting of a 5-membered or 6-membered ring containing 1 to 3 hetero atoms, R.sup.5 represents hydrogen atom or a C.sub.1-6 alkyl group. The compounds or the salts thereof have retinoid-like physiological activities or controlling activity on physiological activities of retinoid. ##STR1##
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