Abstract: The present invention relates to certain new imidazo [2,1-b]-[1,3,4]-thiadiazole compounds, to the provision of pharmaceutical compositions containing said compounds and to the use of said compounds and compositions as antithrombotic agents and thrombolytic agents.

Abstract: Pyrazoles of the formula ##STR1## whereinR is hydrogen, alkyl, aryl, aralkyl, trifluoromethyl or a heterocycle;R.sup.1 is aryl or aralkyl unsubstituted or substituted by halo, trifluoromethyl, alkyl, alkoxy or nitro; or a halo-substituted alkylthio moiety;R.sup.2 is lower alkyl; phenyl; or benzyl;R.sup.3 is aryl unsubstituted or substituted by alkyl, alkenyl, alkoxy, cycloalkyl, cycloalkenyl, halo, trifluoromethyl, trifluoromethoxy, mono- or di-alkylamino, nitro, cyano, carboxamido, sulphonamido or SO.sub.n -alkyl; phenyl having fused thereto a 5- to 7-membered isocyclic or heterocyclic ring, said heterocyclic ring having 1 or 2 oxygen or sulphur heteroatoms; or pyridyl; andR.sup.4 is unsubstituted or substituted carboacyl or sulphonyl; are useful for their diuretic, saluretic, antihypertensive and antithrombotic properties.

Abstract: 6-Substituted-1,2-benzisothiazolin-3-ones carrying an aminoalkyl group in the 2-position and being optionally substituted in the 4- and/or 5-position are antithrombotic agents. The compounds, of which 2-(2-diethylaminoethyl)-4,5-dimethyl-1,2-benzisothiazolin-3-one is a representative embodiment, can be prepared by cyclization of an appropriately substituted bis-[2-(aminoalkylcarbamyl)phenyl]disulfide, or by other disclosed methods.

Abstract: 6-Substituted-1,2-benzisothiazolin-3-ones carrying an aminoalkyl group in the 2-position and being optionally substituted in the 4- and/or 5-position are antithrombotic agents. The compounds, of which 2-(2-diethylaminoethyl)-4,5-dimethyl-1,2-benzisothiazolin-3-one is a representative embodiment, can be prepared by cyclization of an appropriately substituted bis-[2-(aminoalkylcarbamyl)phenyl]disulfide, or by other disclosed methods.

Abstract: Pyrazoles of the formula ##STR1## wherein R is hydrogen, alkyl, trifluoromethyl, aryl, aralkyl or a heterocycle;R.sup.1 is hydrogen, alkyl, aryl or aralkyl;R.sup.3 is an unsubstituted or substituted carboacyl or sulphonyl moiety;X is (a) methylene; (b) ethylene; (c) ethylene wherein 1 hydrogen atom on one or both of the carbon atoms is substituted by alkyl of 1 to 4 carbon atoms; (d) ethylene, or ethylene wherein 1 hydrogen atom on one or both of the carbon atoms is substituted by alkyl of 1 to 4 carbon atoms, linked to R.sup.2 via an oxygen or sulphur atom; (e) propenyl; or (f) propenyl wherein a hydrogen atom on 1, 2 or 3 of the carbon atoms is substituted by alkyl of 1 to 4 carbon atoms; said propenyl moiety being linked to the N.sup.1 atom via a methylene moiety; andR.sup.

Abstract: Pyrazoles of the formula ##STR1## wherein R is hydrogen, alkyl, trifluoromethyl, aryl, aralkyl or a heterocycle;R.sup.2 is hydrogen, alkyl, aryl or aralkyl;R.sup.3 is an unsubstituted or substituted carboacyl or sulphonyl moiety;X is (a) methylene; (b) ethylene; (c) ethylene wherein 1 hydrogen atom on one or both of the carbon atoms is substituted by alkyl of 1 to 4 carbon atoms; (d) ethylene, or ethylene wherein 1 hydrogen atom on one or both of the carbon atoms is substituted by alkyl of 1 to 4 carbon atoms, linked to R.sup.2 via an oxygen or sulphur atom; (e) propenyl; or (f) propenyl wherein a hydrogen atom on 1, 2 or 3 of the carbon atoms is substituted by alkyl of 1 to 4 carbon atoms; said propenyl moiety being linked to the N.sup.1 atom via a methylene moiety; andR.sup.

Abstract: Pyrazoles of the formula ##STR1## wherein R is hydrogen, alkyl, trifluoromethyl, aryl, aralkyl or a heterocycle;R.sup.1 is hydrogen, alkyl, aryl or aralkyl;R.sup.3 is an unsubstituted or substituted carboacyl or sulphonyl moiety;X is (a) methylene; (b) ethylene; (c) ethylene wherein 1 hydrogen atom on one or both of the carbon atoms is substituted by alkyl of 1 to 4 carbon atoms; (d) ethylene, or ethylene wherein 1 hydrogen atom on one or both of the carbon atoms is substituted by alkyl of 1 to 4 carbon atoms, linked to R.sup.2 via an oxygen or sulphur atom; (e) propenyl; of (f) propenyl wherein a hydrogen atom on 1, 2 or 3 of the carbon atoms is substituted by alkyl of 1 to 4 carbon atoms; said propenyl moiety being linked to the N.sup.1 atom via a methylene moiety; andR.sup.

Abstract: Pyrazoles of the formula ##STR1## wherein R is hydrogen, alkyl, aryl, aralkyl, trifluoromethyl or a heterocycle;R.sup.1 is aryl or aralkyl unsubstituted or substituted by halo, trifluoromethyl, alkyl, alkoxy or nitro; or a halo-substituted alkylthio moiety;R.sup.2 is lower alkyl; phenyl; or benzyl;R.sup.3 is aryl unsubstituted or substituted by alkyl, alkenyl, alkoxy, halo, trifluoromethyl, trifluoromethoxy, mono- or di-alkylamino, nitro, cyano, carboxamido, sulphonamido or SO.sub.n -alkyl; phenyl having fused thereto a 5- to 7-membered isocyclic or heterocyclic ring, said heterocyclic ring having 1 or 2 oxygen or sulphur heteroatoms; or pyridyl; andR.sup.4 is unsubstituted or substituted carboacyl or sulphonyl; are useful for their diuretic, saluretic, antihypertensive and antithrombotic properties.

Abstract: 1-Substituted pyrazole-5-ones of the formula ##STR1## and pharmaceutically acceptable, nontoxic salts thereof, wherein R is hydrogen or amino;R.sup.1 is hydrogen, alkyl, alkenyl, unsubstituted or substituted aryl or unsubstituted or substituted aralky;X isa. ethylene, ethylene wherein 1 hydrogen atom on one of the carbon atoms is substituted by alkyl of 1 to 4 carbon atoms, ethylene wherein 1 hydrogen atom on each of the two carbon atoms is substituted by alkyl of 1 to 4 carbon atoms or said ethylene which is linked to R.sup.2 via an oxygen or sulphur atom;b. propenyl, propenyl wherein 1 hydrogen atom on one, two or three of the carbon atoms is substituted by alkyl of 1 to 4 carbon atoms, said propenyl being linked to the N.sup.1 atom of the pyrazol ring via its methylene moiety; orc. methylene;provided that when X is methylene, R.sup.1 is not hydrogen if R is amino;R.sup.2 is aryl unsubstituted or substituted by:a.