Abstract: A benzothiazole derivative or a pharmacologically acceptable salt thereof of the following formula, as defined in the claims, which is useful as a preventive or therapeutic agent for diseases on which functions of suppressing leukotrienes and thromboxanes production are effective: ##STR1##

Abstract: An aminobenzoic acid derivative represented by the following general formulas (I), (I-2) or (I-3), or a pharmacologically acceptable salt thereof, which exhibits a serotonin antagonism and an acetylcholine release accelerating activity at a well-balanced activity ratio and which is efficacious as a drug for patients with gastrointestinal unindentified complaints: ##STR1## wherein R.sup.1 represents a group such as an alkynyl or cyanoalkyl group; R.sup.2 represents a group such as an amino or acylamino group; R.sup.3 represents a halogen atom; X represents --O-- or --NH--; and A represents an oxygen or sulfur atom.

Abstract: A heterocycle-containing carbonic acid derivative represented by the following general formula (I): ##STR1## or a physiologically acceptable salt thereof which exhibits an excellent preventive and therapeutic effect against various diseases, and an intermediate which is useful for the production of the heterocycle-containing carbonic acid derivative.

Abstract: An aminobenzoic acid derivative represented by the following general formulas (I), (I-2) or (I-3), or a pharmacologically acceptable salt thereof, which exhibits a serotonin antagonism and an acetylcholine release accelerating activity at a well-balanced activity ratio and which is efficacious as a drug for patients with gastrointestinal unindentified complaints: ##STR1## wherein R.sup.1 represents a group such as an alkynyl or cyanoalkyl group; R.sup.2 represents a group such as an amino or acylamino group; R.sup.3 represents a halogen atom; X represents --O-- or --NH--; and A represents an oxygen or sulfur atom.

Abstract: An aminobenzoic acid derivative represented by the following formulas (I-2) or (I-3), or a pharmacologically acceptable salt thereof, which exhibits a serotonin antagonism and an acetylcholine release accelerating activity at a well-balanced activity ratio and which is efficacious as a drug for patients with gastrointestinal unindentified complaints: ##STR1## wherein R.sup.1 represents a group such as an alkynyl or cyanoalkyl group; R.sup.2 represents a group such as an amino or acylamino group; R.sup.3 represents a halogen atom; X represents --O-- or --N--; and A represents an oxygen or sulfur atom.

Abstract: Naphthalene derivatives of the formula: ##STR1## wherein R.sup.1, represents a hydrogen atom, a lower alkyl group or an acyl group; R.sup.2 independently represents a hydrogen atom, a lower alkyl group, a lower alkoxy group, a halogen atom, a cycloalkyl group, a cycloalkylalkyl group, a hydroxyl group, an aryl group which may be substituted, an arylalkyl group whose aryl group may be substituted, a heteroaryl group, or a heteroaryllakyl group; R.sup.3 represents a hydrogen atom, a lower alkyl group, a lower alkenyl group, an aryl group which may have a substituent, an arylalkyl group whose aryl group may be substituted, an arylalkenyl group whose aryl group may be substituted, a cycloalkyl group, an alkoxyalkyl group, a heteroaryl group, a heteroarylalkyl group, a carboxyl group, a carboxyalkyl group, an aminoalkyl group, or a cyano group; R.sup.6 is C.sub.1-6 alkyl; and m is 0 or an integer of from 1 to 2 useful in treating autoimmune diseases are disclosed.

Abstract: A benzothiazole derivative or a pharmacologically acceptable salt thereof which is useful as a preventive or therapeutic agent for diseases on which functions of suppressing leukotrienes and thromboxanes production are effective.

Abstract: An aminobenzoic acid derivative represented by the following general formulas (I), (I-2) or (I-3), or a pharmacologically acceptable salt thereof, which exhibits a serotonin antagonism and an acetylcholine release accelerating activity at a well-balanced activity ratio and which is efficacious as a drug for patients with gastrointestinal unindentified complaints: ##STR1## wherein R.sup.1 represents a group such as an alkynyl or cyanoalkyl group; R.sup.2 represents a group such as an amino or acylamino group;R.sup.3 represents a halogen atom;X represents --O-- or --NH--; andA represents an oxygen or sulfur atom.

Abstract: A quinone derivative useful in the treatment of hepatic diseases defined by the general formula: ##STR1## where X and Y may be the same or different from each other and are each a hydroxyl group, a group represented by the formula --(--OCH.sub.2 --).sub.n --OR.sup.6, wherein n is 0 or 1 and R.sup.6 is a lower alkyl group, or an acyl group.

Abstract: The present invention is a quinone derivative which exhibits excellent therapeutic activity represented by the general formula (I) or a pharmacologically acceptable salt thereof: ##STR1## wherein A stands for a group represented by the formula: ##STR2## (wherein R.sup.3, R.sup.4 and R.sup.5 is the same or different from each other and each stand for a hydrogen atom, a hydroxyl group, a lower alkyl group, a lower alkoxy group, an alkoxyalkyl group, an alkoxyalkoxy group, a cycloalkylalkoxy group, a thiol group or a thioalkyl group, with the proviso that R.sup.3 and R.sup.4 are each a lower alkoxy groupR.sup.1 stands for a heteroarylalkyl group; andB stands for a carboxyl group or a protected carboxyl group.

Abstract: A benzothiazole derivative or a pharmacologically acceptable salt thereof which is useful as a preventive or therapeutic agent for diseases on which functions of suppressing leukotrienes and thromboxanes production are effective.A benzothiazole derivative represented by the following general formula (I): ##STR1## wherein R.sup.1 and R.sup.3 are either the same or different and represents a hydrogen atom, a lower alkyl group or a lower alkoxy group; R.sup.4 represents a group represented by the formula --(CH.sub.x)--.sub.q wherein q is a integer of from 1 to 4;R.sup.2 represents a hydrogen atom and;R.sup.5 and R.sup.6 are the same or different and each represent a hydrogen atom or a lower alkyl group; or a pharmacologically acceptable salt thereof.

Abstract: A naphthalene derivative having the formula is new and useful for medicine. ##STR1## wherein R.sup.1 represents a hydrogen atom, a lower alkyl group or an acyl group;R.sup.2 independently represents a hydrogen atom, a lower alkyl group, a lower alkoxy group, a halogen atom, a cycloalkyl group, a cycloalkylalkyl group, a hydroxyl group, an aryl group which may be substituted, an arylalkyl group whose aryl group may be substituted, a heteroaryl group, or a heteroarylalkyl group;R.sup.3 and R.sup.4 are the same or different and represent a hydrogen atom, a lower alkyl group, a lower alkenyl group, an aryl group which may have a substituent, an arylalkyl group whose aryl group may be substituted, an arylalkenyl group whose aryl group may be substituted, a cycloalkyl group, an alkoxyalkyl group, a heteroaryl group, a heteroarylalkyl group, a carboxyl group, a carboxyalkyl group, an aminoalkyl group, or a cyano group;R.sup.5 represents a group of the formula, --OR.sup.7, (wherein R.sup.

Abstract: A quinone derivative useful in the treatment of hepatic diseases defined by the general formula: ##STR1## where R1 is selected from the group consisting of alkyl, alkenly, alkynyl or heterocycle, R2 is a substituted nitrogen containing radical wherein the substituents on said nitrogen are selected from the group consisting of hydrogen, substituted or unsubstituted lower alkyl or heterocycles, and where said nitrogen may be a ring heteroatom, and R3, R4 and R5, may be the same or different and each are hydrogen, lower alkyl or lower alkoxy groups.

Abstract: A naphthalene derivative having the formula is new and useful for medicine. ##STR1## [wherein R.sup.1 represents a hydrogen atom, a lower alkyl group or an acyl group;R.sup.2 independently represents a hydrogen atom, a lower alkyl group, a lower alkoxy group, a halogen atom, a cycloalkyl group, a cycloalkylalkyl group, a hydroxyl group, an aryl group which may be substituted, an arylalkyl group whose aryl group may be substituted, a heteroaryl group, or a heteroarylalkyl group;R.sup.3 and R.sup.4 are the same or different and represent a hydrogen atom, a lower alkyl group, a lower alkenyl group, an aryl group which may have a substituent, an arylalkyl group whose aryl group may be substituted, an arylalkenyl group whose aryl group may be substituted, a cycloalkyl group, an alkoxyalkyl group, a heteroaryl group, a heteroarylalkyl group, a carboxy group, a carboxyalkyl group, an aminoalkyl group, or a cyano group;R.sup.5 represents a group of the formula, --OR.sup.7, (wherein R.sup.