(3,4-dioxocyclobuten-1-yl)chromene, indene, and dihydronaphthale

Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Having -c- – wherein x is chalcogen – bonded directly to...

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514255, 514256, 514259, 514266, 514311, 514314, 514336, 514337, 514357, 514375, 514394, 514406, 514414, 514415, 514422, 514427, 514438, 514443, 514444, 514456, 514457, 514461, 514469, 514510, 514522, 514524, 514562, 514563, 514564, 514567, 514603, 514616, 514617, 514618, 514647, 544283, 544333, 544335, 544336, 544405, 544410, 560 6, 560 12, 560 13, 560 18, 560 19, 560 21, 560 22, 560 23, 560 45, 560 47, 560 48, 546167, 546173, 546269, 546329, 546330, 546332, 546346, 549 49, 549 58, 549 60, 549 74, 549 75,

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active

054829429

ABSTRACT:
This invention relates to novel 4-(3,4-dioxocyclobuten-1-yl)chromenes and dihydronaphthalenones and 3-(3,4-dioxocyclobuten-1-yl)indenes and salts thereof having smooth muscle relaxing activity, to their use in the treatment of hypertension as well as for treatment of peripheral vascular disease, congestive heart failure, disorders involving excessive smooth muscle contraction of the urinary tract such as incontinence or of the gastrointestinal tract such as irritable bowel syndrome, asthma, and hair loss and to pharmaceutical compositions containing an invention compound. The present invention discloses compounds represented by the formula (I): ##STR1## wherein: R.sub.1 and R.sub.2, independent from each other, are selected from the following: C.sub.1-6 perfluoroalkoxy, C.sub.1-6 perfluoroalkyl, C.sub.1-6 alkyl, C.sub.1-6 alkoxy, hydroxyl, C.sub.1-6 alkoxycarbonyl, nitro, cyano, halogen, C.sub.1-6 alkylsulfonamido, C.sub.1-6 perfluoroalkylsulfonamido, amino, C.sub.1-6 acylamino, C.sub.1-6 perfluoroacylamino, mono or di-C.sub.1-12 alkylamino, C.sub.1-6 alkylsulfonyl, C.sub.6-10 arylsulfonyl, carboxyl, C.sub.1-12 mono or di-alkylaminocarbonyl, or hydrogen;

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