摘要:
An aminopropanol compound of the formula ##STR1## wherein R.sub.1 and R.sub.2 are individually selected from hydrogen and lower alkyl; orR.sub.1 and R.sub.2 together represent an alkylene radical;R.sub.3 is hydrogen or acyl;A is one of the following structures ##STR2## wherein R.sub.4 is hydrogen or lower alkyl optionally substituted by hydroxyl halogen and lower alkylthio; andR.sub.5 and R.sub.6 are individually selected from lower alkyl;B is alkylamino which optionally carries a phenyl and a phenoxy radical optionally substituted by at at least one of halogen, hydroxyl or lower alkyl, lower acyl, lower alkylthio, acylamino, aminocarbonyl, lower alkoxy, lower alkenyloxy, phenoxy, lower alkenyl, lower alkylsulphonyl, lower alkylsulphinyl or haloalkyl; orB is an aryl- or heteroaryloxymethylpiperidine radical optionally substituted by at least one of halogen hydroxyl or lower alkyl, hydroxyl alkyl or carboxamido alkyl, or by lower alkoxy, lower acyl, amino, carboxamido, lower alkylcarbonylamido or lower alkylsulphonylamino;and the pharmacologically acceptable salts thereof, are outstandingly effective beta blockers and blood-pressure depressants.
摘要:
2-benzimidazolinone compounds of the formula ##STR1## wherein R is lower alkyl,R.sub.1 and R.sub.2, which can be the same or different, are lower straight-chained or branched alkyl and one of R.sub.1 and R.sub.2 can also be hydrogen orR.sub.1 and R.sub.2 together represent an alkylene radical and R.sub.3 is hydrogen or acyl, i.e., alkanoyl or aromatic carboxylic acid moieties;and the pharmacologically acceptable salts thereof; have marked .beta.-receptor blocking action and are outstandingly useful in the treatment or prophylaxis of cardiac and circulatory diseases.
摘要:
Novel 4-hydroxy-2-benzimidazoline-thione compound of the formula: ##STR1## wherein R is lower alkyl;R.sub.1 and R.sub.2, which can be the same or different, are hydrogen or lower straight-chained or branched alkyl orR.sub.1 and R.sub.2 together represent alkylene; andR.sub.3 is a hydrogen atom or an acyl radical;and the pharmacologically acceptable salts thereof; have marked .beta.-receptor blocking action and are outstandingly useful in the treatment or prophylaxis of cardiac and circulatory diseases.
摘要:
A piperidinopropyl derivative of the formula ##STR1## in which R.sub.1 and R.sub.2 each independently is hydrogen or a lower alkyl radical, or together are an alkylene radical,R.sub.3 is hydrogen, hydroxy, or acyloxy,R.sub.4 is hydrogen or formyl,A together with the adjacent benzene ring and N-R.sub.4 forms a benzimidazolin-2-one, benzimidazoline-2-thione, oxindole, indazole carbazole, benztriazole, benzimidazole, indoline or indole moiety, andB is a heterocyclic radical or, under certain circumstances, a phenyl radical, either of which is optionally substituted by halogen, hydroxy, lower alkyl, hydroxy-lower alkyl, carboxamido-lower alkyl, lower alkoxy, amino, carboxamido, lower alkyl-carbonylamino, acyl or lower alkylsulphonylamino,or a pharmacologically acceptable salt thereof. The compounds inhibit adrenergic .beta.-receptors and lower blood pressure.
摘要:
The present invention provides heterocyclic oxypropanol derivatives of the general formula: ##STR1## wherein R.sub.1 is a hydrogen atom or a lower alkyl, aralkyl or lower alkanoyl radical, R.sub.2 and R.sub.3, which can be the same or different, are hydrogen atoms or lower alkyl, hydroxyalkyl, alkoxycarbonyl or alkanoyloxyalkyl radicals or together represent an alkylene radical, R.sub.4 is a hydrogen atom or a lower alkanoyl radical or an aroyl radical, R.sub.5 is a hydrogen atom or a lower alkyl radical or an aralkyl radical, R.sub.6 is a hydrogen atom or a lower alkyl radical, R.sub.7 is a hydrogen atom, a hydroxyl group or a lower alkyl radical, Z is a valency bond, a methylene radical or an oxygen or sulphur atom, Ar is a carbocyclic aryl radical or a pyridyl radical, R.sub.8, R.sub.9 and R.sub.10, which can be the same or different, are hydrogen or halogen atoms, hydroxyl groups, lower alkanoyl radicals, lower alkyl radicals, lower alkenyl radicals, lower alkoxy radicals, aralkoxy radicals, allyloxy radicals, lower alkylthio radicals, aminocarbonyl radicals, aminosulphonyl radicals or lower alkanoylamino radicals or R.sub.8 and R.sub.9 together represent a lower alkylenedioxy radical or R.sub.7 and R.sub.8 together represent a --CH.sub.2 --O-- radical and A is --X.sub.1 --Y.sub.1, in which X.sub.1 is a methylene or --NR.sub.11 -- radical, R.sub.11 being a hydrogen atom or a lower alkyl radical, and Y.sub.1 is a methylene radical or .dbd.C.dbd.Q, Q being an oxygen or sulphur atom; or A is --X.sub.2 .dbd.Y.sub.2 --, in which X.sub.2 and Y.sub.2, which can be the same or different and signify nitrogen atoms or .dbd.C(R.sub.12)-- groups, R.sub.12 being a hydrogen atom or a lower alkyl or an alkoxycarbonyl radical, and when --X.sub.2 .dbd.Y.sub.2 -- represents a --CH.dbd.N-- group and R.sub.1 is an alkyl or aralkyl radical, because of the ability of indazole to tautomerise, this can also be localized on the nitrogen atom represented by Y.sub.2, with the proviso that Y.sub.1 or Y.sub.2 is joined to .dbd.N--R.sub.1 in general formula (I), and, when Q is an oxygen atom or --X.sub.2 .dbd.Y.sub.2 -- represents --CR.sub.12 .dbd.CR.sub.12 -- and Z is a valency bond or when --X.sub.1 --Y.sub.1 -- represents ##STR2## and Z is an oxygen atom or a valency bond, either the two symbols R.sub.2 and R.sub.3 do not simultaneously represent hydrogen atoms or R.sub.7 and R.sub.8 together must form a --CH.sub.2 --O-- radical; and the pharmacologically acceptable salts thereof.The present invention also provides processes for the preparation of these compounds and pharmaceutical compositions containing them.Furthermore, the present invention is concerned with the use of these compounds for the treatment of cardiac and circulatory diseases.
摘要:
Enrichment and purification of heart glycosides from mixtures of mother liquors is achieved by absorption on non-polar, large-pored resins from aqueous solution with possible addition of solvents miscible with water, and subsequent desorption with water/solvent mixtures or pure solvents.