摘要:
Novel 4,5-bis(4-methoxyphenyl)-2-(pyrrol-2-yl)-thiazoles of the formula: ##STR1## wherein R.sup.1 is C.sub.1-4 alkyl, C.sub.2-4 alkenyl, C.sub.2-4 alkynyl, 2,2,2-trifluoroethyl, a group of the formula: --CH.sub.2 COOR.sup.2 R.sup.2 is C.sub.1-8 alkyl, C.sub.2-4 alkenyl, C.sub.2-4 alkynyl, or phenyl-C.sub.1-2 alkyl), or a group of the formula: --(CH.sub.2).sub.n --A--R.sup.3 (A is oxygen or sulfur, R.sup.3 is C.sub.1-4 alkyl or C.sub.2-4 alkenyl, and n is 1, 2 or 3), a process for the preparation of the compounds, and a pharmaceutical composition useful as a platelet aggregation inhibitor which comprises as an active ingredient the above 4,5-bis(4-methoxyphenyl)-2-(pyrrol-2-yl)thiazole compound in admixture with a conventional pharmaceutically acceptable carrier or diluent.
摘要:
An ethyl benzylphosphinate derivative represented by the general formula (I) ##STR1## wherein Y represents a hydrogen or fluorine atom, X represents a methylene group or an oxygen atom, and n is 2, 3 or 4.The said compounds can be produced by reacting a compound represented by the following formula (II) ##STR2## wherein Y is as defined above, with a compound represented by the following formula (III) ##STR3## wherein X and n are as defined, and M is an alkali metal atom, in an inert medium. These compounds are useful as a calcium antagonist.
摘要:
A phosphonic acid ester of the formula ##STR1## exhibits calcium-antagonistic, coronary vasodilating and hypotensive activities. Pharmaceutical compositions containing the same are useful for the prophylaxis and treatment of circulatory organ diseases such as angina pectoris, hypertension and the like.
摘要:
2-Substituted benzimidazole compounds of the formula: ##STR1## wherein R.sub.1 is hydrogen, halogen, lower alkyl or lower alkoxy, and R.sub.2 is hydrogen or lower alkyl with the proviso that R.sub.1 and R.sub.2 do not stand for hydrogen simultaneously and, when R.sub.1 is hydrogen, R.sub.2 cannot mean a methyl group at 6th position on the pyridin-2-yl group or methyl an isobutyl group on the phenyl group; are useful as anti-inflammatory agents and/or analgesics.
摘要:
Novel benzylpiperazine compound of the formula: ##STR1## or a pharmaceutically acceptable acid addition salt thereof, which has excellent hypolipidemic activity without undesirable side effect, and a pharmaceutical composition containing the compound as an active ingredient suitable for the prophylaxis and treatment of hyperlipidemia.
摘要:
A 1-benzyl-4-benzhydrylpiperazine derivative represented by the following general formula (I) ##STR1## wherein R.sup.1 represents a hydrogen atom or a methoxy group, andR.sup.2 represents a hydrogen or fluorine atom,or a pharmaceutically acceptable acid addition salt thereof.The 1-benzyl-4-benzhydrylpiperazine derivative or an acid addition salt thereof is prepared by reductively condensing a benzaldehyde derivative with a fluorobenzhydrylpiperazine, or condensing a benzyl halide derivative with a fluorobenzhydrylpiperazine optionally in the presence of an acid acceptor, or condensing a benzylpiperazine with a fluorobenzhydryl halide derivative and, optionally converting the product to its acid addition salt.The 1-benzyl-4-benzhydrylpiperazine derivative is useful for improving a cerebrovascular disease.
摘要:
A 1-benzhydryl-4-cinnamylpiperazine derivative represented by the following formula (I) ##STR1## wherein R.sup.1 represents a hydrogen atom or a methoxy group, and R.sup.2 represents a hydrogen or fluorine atom, or a pharmaceutically acceptable acid addition salt thereof. The compound (I) is prepared by selectively reducing the corresponding 1-benzhydryl-4-cinnamoylpiperazine derivative and optionally converting the product into its acid addition salt. The compound (I) is useful for treatment of cerebrovascular disease in a human.
摘要:
Novel benzimidazole derivatives of the formula: ##STR1## wherein R.sup.1 is a lower alkyl group, a lower alkenyl group or a lower alkynyl group, R.sup.2 is hydrogen atom, a lower alkyl group or a lower hydroxyalkyl group, and n is 2 or 3, or a pharmaceutically acceptable acid addition salt thereof, which have potent antihistaminic activity with less toxicity and hence are useful as an antihistaminics, and a process for the preparation of the compounds, and a pharmaceutical composition useful as antihistaminics containing the compound as an essential active ingredient.
摘要:
Novel benzimidazole derivatives of the formula: ##STR1## wherein R.sup.1 is an alkyl group having 1 to 3 carbon atoms, allyl group, propargyl group, or phenyl group; R.sup.2 is hydrogen atom or an alkyl group having 1 to 3 carbon atoms; and n is 2 or 3, or pharmaceutically acceptable acid addition salts thereof, which have excellent antihistaminic activities and are useful as antiallergics for various allergic diseases, and a process for the preparation thereof, and an antihistaminic composition containing the compound as an active ingredient.
摘要:
A neuroprotecting drug comprises as an essential active ingredient ethyl 2-[4,5-bis(4-methoxyphenyl)thiazol-2-yl]pyrrol-1-yl acetate, which is useful with high safety for the prophylaxis and treatment of brain dysfunction induced by hypoxia due to the disturbance of cerebral circulation such as cerebral hemorrhage or cerebral infarction in human being.