Thiadiazolyl-amino derivatives of benzopyrans and indanes

Details Thiadiazolyl-amino derivatives of benzopyrans and indanes Thiadiazolyl-amino derivatives of benzopyrans and indanes

1992-05-08

1993-04-27

Gerstl, Robert

Drug, bio-affecting and body treating compositions

Designated organic active ingredient containing

Having -c-, wherein x is chalcogen, bonded directly to...

548135, C07D41712, C07D28510, A61K 3141

Patent

active

052062520

ABSTRACT:
The compounds of the formula: ##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.2-6 alkoxycarbonyl, nitro, cyano, halogeno, C.sub.1-6 alkylsulfonamido, C.sub.1-6 perfluoroalkylsulfonamido, amino, C.sub.2-6 alkanoylamino, C.sub.2-6 perfluoroalkanoylamino, C.sub.1-12 mono- or di-alkylamino, C.sub.1-6 alkylsulfonyl, C.sub.6-12 arylsulfonyl, carboxyl, C.sub.2-12 mono- or di-alkylcarbamoyl, or hydrogen; a and b together form an --O-- linkage or a direct bond; R.sub.3 and R.sub.4, independent from each other, are C.sub.1-6 alkyl when a and b form an --O-- linkage or, H or C.sub.1-6 alkyl when a and b form a direct bond; either R.sub.5 is hydrogen, hydroxyl, C.sub.2-6 alkanoyloxy, C.sub.7-12 aroyloxy, carbamoyloxy, formyloxy, C.sub.2-6 alkoxycarbonyloxy, mono or di C.sub.2-12 alkylcarbamoyloxy, and R.sub.6 is hydrogen, or R.sub.5 and R.sub.6 together are a bond; R.sub.7 is hydrogen, C.sub.1-6 alkyl, C.sub.1-6 alkanocarbonyl, or C.sub.16 alkanosulfonyl; X is selected from the following: --NR.sub.8 R.sub.9, wherein R.sub.8 and R.sub.9, independent from each other are hydrogen, C.sub.1-6 alkyl, C.sub.2-6 alkylcarbonyl, C.sub.7-12 arylalkyl, thienylmethyl, pyridinylmethyl, piperazinylmethyl, or pyrimidinylmethyl, or R.sub.8 and R.sub.9 taken together are polymethylene of 3-10 carbon atoms or R.sub.8 and R.sub.9 taken with the nitrogen atom to which they are attached complete a piperazine, morpholine, pyrroline, pyrrolidinone, imidazole, imidazolone, piperidine or piperidinone ring structure; or --OR.sub.10, wherein R.sub.10 is hydrogen, C.sub.1-6 alkyl or C.sub.2-6 alkylcarbonyl; and n is an integer from 0-2; or a pharmaceutically acceptable salt thereof, are useful antihypertensive, K channel activators.

REFERENCES:
patent: 4692531 (1987-09-01), Algieri
patent: 4782083 (1988-11-01), Cassidy
Longman et al., Medicinal Research Reviews, 1992, 12, 73.
Robertson, et al., J. Med. Chem, 1990, 33, 1529.
Weston, et al., TiPS, 1990, 11, 417.
Evans et al., Ann. Rep. Med. Chem., 1991, 26, 73.

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