Abstract: N-Substituted-N′-substituted urea derivatives represented by the following formula, analogs thereof or pharmaceutically acceptable salts thereof are herein provided. These compounds show a TNF-&agr; production inhibitory activity.

Abstract: N-Substituted-N′-substituted urea derivatives represented by the following formula, analogs thereof or pharmaceutically acceptable salts thereof are herein provided. These compounds show a TNF-&agr; production inhibitory activity.

Abstract: An object of the present invention is to provide novel urea derivatives which have TNF-&agr; production inhibitory effects and are useful as therapeutic agents for various diseases, particularly as therapeutic agents for autoimmune diseases such as rheumatoid arthritis. The urea derivatives according to the present invention are compounds represented by the formula [I] and salts thereof. In the formula, R1 is H, alkyl, phenyl or a group of the formula [`I]; R2 is H, alkyl, carboxyl or ester thereof or the like; R3 and R4 are each H, alkyl, cycloalkyl or the like; R5 is H, alkyl, hydroxy or the like; R6 is a nitrogen aromatic heterocycle; and A1 and A2 are alkylene.

Abstract: The present invention relates to leukotriene A4 hydrolase inhibitors containing compounds represented by the formula [I] or salts thereof as active ingredients, wherein R1 represents hydrogen, alkyl, phenylalkyl, alkanoyl or benzoyl; R2 and R3 each represent hydrogen or alkyl; R4 represents hydroxyl, alkoxy, phenylalkoxy, amino, alkylamino or phenylalkylamino; R5 represents phenylalkyl or naphthylalkyl; “Z” represents sulfur or oxygen; “A” represents alkylene; and “n” represents 0, 1 or 2; providing that the phenyl ring in R1 can be substituted by alkyl, alkoxy or halogen, and that the phenyl ring or the naphthyl ring in R5 can be substituted by alkyl, cycloalkyl, alkoxy, alkylthio or halogen.

Abstract: A process for producing a cyclic alcohol by a catalytic hydration reaction of a starting cyclic olefin represented by the following formula (1) and water:C.sub.s H.sub.2s-2-t R.sub.t (1)wherein R is a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, a phenyl group or a cyclohexyl group; s is an integer of 5 to 12; and t is an integer of 1 to 4, which comprises supplying a part or the whole of a residue left after separation of said cyclic alcohol from an oil phase containing said cyclic alcohol, unreacted cyclic olefin and impurities having a boiling point between the boiling point of said starting cyclic olefin and that of said cyclic alcohol to a distillation column(s), and recycling the unreacted cyclic olefin obtained after removal of said impurities.

Abstract: Novel benzylaminoethoxybenzene derivatives of the formula (I) ##STR1## wherein R.sup.1 is a hydrogen atom, a lower alkyl, a lower hydroxyalkyl, a lower alkoxyalkyl, an allyl or a benzyl; R.sup.2 is a hydrogen atom, a lower alkyl, a lower acyl, an allyl or a benzyl; R.sup.3 is a hydrogen atom, a lower alkyl, a lower alkoxyalkyl, a lower dialkylaminoalkyl or a lower acyl; and R.sup.4 is a hydrogen atom, a halogen atom, a lower alkoxy, an amino, a lower acylamino, a hydroxy, a lower acyloxy, a lower acyl, a carboxy or a lower alkoxycarbonyl, salts thereof and solvates thereof. An .alpha..sub.1 -adrenoceptor blocker obtained from this compound has a strong .alpha..sub.1 -adrenoceptor blocking effect and causes less side effects such as orthostatic hypotension.

Abstract: Novel substituted acetamide compounds of the formula ##STR1## wherein R.sup.1 is hydrogen atom, a lower alkyl group, a lower acyl group, or an aryl group; R.sup.2 is cyano group or aminocarbonyl group; R.sup.3 is a halogen atom, nitro group, a lower alkoxy group, a group of the formula: --NR.sup.4 R.sup.5 (wherein R.sup.4 is hydrogen atom, a lower alkyl group or a group of the formula: --COCH.sub.2 OR.sup.1 ; R.sup.5 is hydrogen atom or a lower alkyl group), or a cyclic amino group of the formula: ##STR2## (wherein R.sup.6 and R.sup.7 are each an alkylene group having 1 to 3 carbon atoms, and X is oxygen atom or methylene), or a pharmaceutically acceptable acid addition salt thereof, which have excellent anti-allergic activity and are useful for the prophylaxis and treatment of various allergic diseases, and a pharmaceutical composition containing the amide compound as set forth above as an active ingredient.

Abstract: Novel benzothiazole derivatives of the formula (I): ##STR1## wherein R.sup.1 is hydrogen atom, a lower alkyl group or a lower acyl group; X and Y are the same or different and are each hydrogen atom, a halogen atom, a lower alkyl group, a lower alkoxy group, nitro group, amino group, cyano group, trifluoromethyl group, a group of the formula: --COOR.sup.2 (wherein R.sup.2 is hydrogen atom, a lower alkyl group, an alkali metal, an alkaline earth metal, or a cation of amine), or a group of the formula: --CONR.sup.3 R.sup.4 (wherein R.sup.3 and R.sup.4 are the same or different and are each hydrogen atom or a lower alkyl group) or a pharmaceutically acceptable acid addition salt thereof, which have excellent anti-allergic activity and are useful for the prophylaxis and treatment of various allergic diseases, and a pharmaceutical composition containing the compound as set forth above as an active ingredient.

Abstract: Novel amide compounds of the formula: ##STR1## wherein R.sup.1 is hydrogen, lower alkyl, acetyl, or propionyl; R.sup.2 is hydrogen or chlorine; R.sup.3 is hydrogen or a group of the formula: --CO.sub.2 R.sup.6 (wherein R.sup.6 is hydrogen, lower alkyl or alkali metal); R.sup.4 is hydrogen, trifluoromethyl, cyano, aminocarbonyl, or a group of the formula: --CO.sub.2 R.sup.7 (wherein R.sup.7 is hydrogen, lower alkyl, or alkali metal); R.sup.5 is hydrogen, or a group of the formula: --CO.sub.2 R.sup.8 (wherein R.sup.8 is hydrogen, lower alkyl, or alkali metal), which have excellent anti-allergic activity and are useful for the prophylaxis and treatment of various allergic diseases, and a pharmaceutical composition containing the amide compound as set forth above as an active ingredient.

Abstract: Novel pyrimidine compounds of the formula: ##STR1## wherein R.sub.1 and R.sub.1 ' are each hydrogen atom, a lower alkyl, benzyl, an alkali metal, or ammonium; R.sub.2 is hydrogen atom, a halogen atom, a lower alkyl, a lower alkoxy, an aryl, a group of the formula: ##STR2## (wherein R.sub.3 and R.sub.4 are each hydrogen atom, a lower alkyl, or an aryl), or a group of the formula: ##STR3## [wherein R.sub.5 and R.sub.6 are each an alkylene having 1 to 3 carbon atoms, and X is oxygen atom, methylene, or a group of the formula: >N-Y (wherein Y is hydrogen atom, a lower alkyl, benzyl, or an aryl)], which have excellent antiallergic activities and are useful for the prophylaxis and treatment of various allergic diseases, and a pharmaceutical composition containing said pyrimidine compound as an active ingredient.