Abstract: Imidazo- and pyrimido[2,1-b]quinazolines of the formula, ##STR1## wherein R.sub.1 and R.sub.2 are independently hydrogen, halogen, trifluoromethyl, nitro, C.sub.1-4 alkyl or C.sub.1-4 alkoxy, or R.sub.1 and R.sub.2 may together represent methylenedioxy; R.sub.3 is hydrogen, C.sub.1-4 alkyl, phenyl or substituted phenyl of the formula, ##STR2## (wherein R is halogen, C.sub.1-4 alkyl or C.sub.1-4 alkoxy); R.sub.4 is hydrogen, C.sub.1-4 alkyl or aralkyl; and A is C.sub.2-3 alkylene wich may be optionally substituted by one or two C.sub.1-2 alkyl radicals, and pharmaceutically acceptable acid addition salts thereof, are prepared by reacting a compound of the formula, ##STR3## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4 and A are as defined above; and X is oxygen or sulfur, with a halogenating agent at a temperature of about 30.degree. C. to about 180.degree. C. In the above imidaxo- and pyrimido[2,1-b]quinazolines, those having C.sub.1-4 alkyl, or ##STR4## as R.sub.

Abstract: Viral infections caused by viruses belonging to Herpes and Influenza groups can be controlled by administering an effective amount of 3-amino-4-homoisotwistane of the formula, ##STR1##

Abstract: Novel morpholine compounds of the formula: ##STR1## wherein R.sub.1 represents hydrogen or C.sub.1 -C.sub.4 alkyl, R.sub.2 represents hydrogen, C.sub.1 -C.sub.4 alkyl, C.sub.3 -C.sub.5 alkenyl, C.sub.3 -C.sub.5 alkynyl, aryl-(C.sub.1 -C.sub.4)alkyl, (C.sub.3 -C.sub.6)cycloalkyl(C.sub.1 -C.sub.4)alkyl, polyhalo(C.sub.2 -C.sub.4) alkyl or hydroxy(C.sub.2 -C.sub.4)alkyl, A represents straight or branched C.sub.2 -C.sub.4 alkylene, B represents a divalent radical selected from the group consisting of --CH.sub.2 --CH.sub.2 --, --CH.dbd.CH--, ##STR2## --CH.sub.2 --O--, --CH.sub.2 --S--, --S-- and --O--, >D--E-- represents a trivalent radical selected from the group consisting of >CH--CH.sub.2 -- and >C.dbd.CH-- and C.sub.1 and C.sub.2 each represent 1,2-phenylene optionally substituted with one or more substituents selected from the group consisting of halogen, C.sub.1 -C.sub.4 alkyl and C.sub.1 -C.sub.

Abstract: Novel .gamma.-piperidinobutyrophenone derivatives of the formula, ##STR1## wherein R.sup.1 is halogen, amino, alkanoylamino, alkylamino or N-(alkanoyl)alkylamino;R.sup.2 is hydrogen or halogen, provided that when R.sup.1 is halogen, R.sup.2 must be halogen; andZ is a piperidino group having the formula (A), ##STR2## (wherein each of R.sub.a and R.sub.b is hydrogen, halogen, lower alkyl, lower alkoxy or trifluoromethyl; R.sup.3 is hydrogen or hydroxyl; and n is 1 or 2), or a piperidino group having the formula (B), ##STR3## (wherein R.sub.c is hydrogen or lower alkyl; and each of R.sub.d and R.sub.e is hydrogen, halogen, lower alkyl or lower alkoxy), provided that when R.sup.1 is amino and R.sup.2 is hydrogen, Z cannot be represented by the formula (A), and their pharmaceutically acceptable acid addition salts, which are useful as psychotropic, neuroleptic or analgesic agents.

Abstract: Viral infections caused by viruses which belong to, e.g. Pox, Herpes, Adeno, Myxo, Paramyxo groups are controlled by administering an effective amount of quinazoline derivatives of the formula ##STR1## wherein R.sub.1 is cyclo, C.sub.3 -C.sub.8 alkyl, cyclo C.sub.3 -C.sub.8 alkyl C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy C.sub.1 -C.sub.4 alkyl, C.sub.2-C.sub.5 alkenyloxy C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkylthio C.sub.1 -C.sub.4 alkyl, polyhalo C.sub.1- C.sub.4 alkyl, a group of the formula ##STR2## (wherein m is an integer of 1 to 3; and R.sub.4 and R.sub.5 are individually C.sub.1 -C.sub.4 alkyl, and may form together with the adjacent nitrogen atom an unsubstituted or C.sub.1 -C.sub.4 alkyl substituted 3 to 6 membered saturated heterocyclic ring, which may contain another nitrogen or oxygen atom) or a group of the formula --C.sub.n H.sub.2n --R.sub.6 (wherein n is 0 or an integer of 1 to 3; and R.sub.

Abstract: A burner includes a plurality of air nozzles open toward a furnace and which are disposed unsymmetrically with respect to the central axis of the burner and so combined that the velocity of combustion air to issue from one or more of the nozzles is higher than the mean air velocity through the total air nozzle opening area and the velocity of combustion air from the rest of the nozzles is lower than the mean velocity. The opening area of the lower-velocity air nozzle or nozzles accounts for from 30 to 60% of the total opening area. A fuel nozzle or nozzles are located within or adjacent the lower-velocity air nozzle or nozzles. The amount of air to issue from the lower-velocity air nozzle or nozzles is not more than 70% of the theoretical air for the fuel to jet out of the burner.

Abstract: Novel indan compounds of the formula ##STR1## wherein A and X are each ethylene or vinylene; B is C.sub.2-4 alkylene; R and R.sub.2 are each hydrogen or C.sub.1-4 alkyl; R.sub.1 is C.sub.1-8 alkyl; <C = Z is <C = O, or ##STR2## and its non-toxic salts, which are useful as antiulcers, gastric secretion inhibitors, and hypotensors.

Abstract: Novel benzisoxazole compounds of the formula: ##STR1## wherein R.sub.1 and R.sub.2 are each hydrogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, ar(C.sub.1 14 C.sub.3) alkoxy or halogen or, when taken together, they form C.sub.1 -C.sub.2 alkylenedioxy, Alk is C.sub.1 -C.sub.4 alkylene and A is a group of the formula: ##STR2## (wherein R.sub.3 and R.sub.4 are each C.sub.1 -C.sub.4 alkyl or, when taken together with the adjacent nitrogen atom, they represent a 5-6 membered nitrogen-containing heterocyclic ring which may contain any additional hetero atom and R.sub.5 is C.sub.1 -C.sub.4 alkyl or aryl), and non-toxic salts thereof, which possess various pharmaceutical activities.

Abstract: Novel cyclopropylmethylamine compounds of the formula: ##STR1## wherein R.sup.1 and R.sup.2 are each hydrogen or halogen and R.sup.3 is hydrogen or methyl, and their non-toxic salts, which possess various useful pharmacological activities and can be produced by reduction of the corresponding compounds of the formula: ##STR2## wherein R.sup.1, R.sup.2 and R.sup.3 are each as defined above or their non-toxic salts, or by condensation of the corresponding compounds of the formula: ##STR3## wherein R.sup.1 and R.sup.2 are each defined above, and X is a conventional interchangeable group such as halogen or sulfonyloxy with methylamine or dimethylamine.

Abstract: Novel cyclopropylmethylamine compounds of the formula: ##STR1## wherein Ar.sup.1 represents a phenyl group having one or more substituents selected from the group consisting of halogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy and trifluoromethyl, of which at least one is present at the o- or m-position, Ar.sup.2 represents an unsubstituted phenyl group or a phenyl group substituted with one or more substituents selected from the group consisting of halogen and C.sub.1 -C.sub.4 alkyl, R represents hydrogen, C.sub.1 -C.sub.4 alkyl or C.sub.2 -C.sub.4 hydroxyalkyl and R' represents C.sub.1 -C.sub.4 alkyl or C.sub.2 -C.sub.4 hydroxyalkyl, and their non-toxic salts, which possess various useful pharmacological activities and can be produced by reduction of the corresponding compounds of the formula: ##STR2## wherein Ar.sup.1, Ar.sup.2, R and R' are each as defined above or by condensation of the corresponding compounds of the formula: ##STR3## wherein Ar.sup.1 and Ar.sup.

Abstract: 3,4-Dihydro-2(1H)-quinazolinone derivatives of the formula, ##STR1## wherein R.sub.1 and R.sub.2 signify individually a hydrogen atom, a lower alkyl group, a lower alkoxy group, a nitro group, a trifluoromethyl group, a lower alkylthio group, a lower alkylsulfonyl group or a halogen atom; R.sub.3 signifies a phenyl group, a halophenyl group, a lower alkylphenyl group, a lower alkoxyphenyl group, a trifluoromethylphenyl group, a lower cycloalkyl group, a lower cycloalkenyl group, a pyridyl group, a pyrrolyl group, a furyl group, a thienyl group or a naphthyl group; R.sub.

Abstract: 1,4-Substituted-2(1H)-quinazolinone derivatives are prepared by contactng a 2-aminophenyl ketone derivative with an alkaline agent such as alkali metal, alkali metal hydride, alkali metal amide, etc., reacting the thus obtained metal salt of 2-aminophenyl ketone derivative with a reactive ester of alcohols, reacting the thus obtained 2-(N-mono-substituted amino)-phenyl ketone derivative with a lower alkyl haloformate or a benzyl haloformate, and reacting the thus obtained carbamate derivative with ammonia. The 1,4-substituted-2(1H)-quinazolinone derivatives have excellent pharmacological properties, particularly as anti-inflammatory and analgesic effects.

Abstract: Novel morpholine compounds of the formula: ##STR1## wherein R.sub.1 represents hydrogen or C.sub.1 -C.sub.4 alkyl, R.sub.2 represents hydrogen, C.sub.1 -C.sub.4 alkyl, C.sub.3 -C.sub.5 alkenyl, C.sub.3 -C.sub.5 alkynyl, aryl-(C.sub.1 -C.sub.4)alkyl, (C.sub.3 -C.sub.6)cycloalkyl(C.sub.1 -C.sub.4)alkyl, polyhalo(C.sub.2 -C.sub.4)alkyl or hydroxy(C.sub.2 -C.sub.4)alkyl, A represents straight or branched C.sub.2 -C.sub.4 alkylene, B represents a divalent radical selected from the group consisting of --CH.sub.2 --CH.sub.2 --, --CH.dbd.CH--, ##STR2## --CH.sub.2 --O--, --CH.sub.2 --S--, --S-- and --O--, >D --E-- represents a trivalent radical selected from the group consisting of >CH--CH.sub.2 -- and >C.dbd.CH-- and C.sub.1 and C.sub.2 each represent 1,2-phenylene optionally substituted with one or more substituents selected from the group consisting of halogen, C.sub.1 -C.sub.4 alkyl and C.sub.1 -C.sub.

Abstract: An analgetic composition which comprises, as an active ingredient, a therapeutically effective amount of a synergistic mixture of an indole-3-acetic acid derivative of the formula, ##STR1## wherein R is a halobenzoyl, piperonylcyl or cinnamoyl group and R.sub.1 is a 5-methoxy or 5,6-methylenedioxy group; and a narcotic or anti-narcotic analgesic selected from the group consisting of a compound of the formula, ##STR2## wherein R.sub.2 and R.sub.3 are each a C.sub.1 - C.sub.3 alkyl group and R.sub.4 is a 4-(4-fluorophenyl)-4-oxobutyl, cyclopropylmethyl or 3-methyl-2-butenyl group; a compound of the formula, ##STR3## wherein R.sub.5 is a hydrogen atom or a C.sub.1 - C.sub.3 alkyl group; a compound of the formula, ##STR4## and a compound of the formula, ##STR5## wherein R.sub.6 is a C.sub.1 - C.sub.3 alkyl group; and a pharmaceutically acceptable carrier or diluent and its preparation and a method of obtaining analgesia which comprises administering the same to a patient.

Abstract: Novel N-substituted heterocyclic derivatives represented by the formula, ##STR1## wherein R is hydrogen or lower alkanoyl; R.sub.1 is hydrogen, lower alkyl, lower alkoxy, halogen, nitro, trifluoromethyl, amino or N-lower alkanoylamino; R.sub.2 is hydrogen, halogen, amino or N-lower alkanoylamino; W is oxygen, sulfur, sulfinyl or sulfonyl; and Y is ##STR2## (wherein R.sub.3 is hydrogen, lower alkyl or lower alkanoyl; and R.sub.4 is hydrogen, halogen or lower alkyl), and pharmaceutically acceptable salts thereof, which have excellent anti-inflammatory, analgesic, sedative, anti-convulsive or anti-hypertensive activities.

Abstract: Novel 1-substituted benzodiazepine derivatives and salt thereof having the formula, ##STR1## wherein R.sub.1 is a hydrogen atom, a halogen atom, a nitro group, a cyano group, a lower alkoxy group or a trifluoromethyl group; R.sub.2 is a pyridyl group or a group of the formula ##STR2## wherein R.sub.5 and R.sub.6 represent individually a hydrogen atom, a halogen atom, a lower alkyl group or a trifluoromethyl group); R.sub.3 is a hydrogen atom or a lower alkyl group; R.sub.4 is a lower alkyl, cycloalkyl, cycloalkylalkyl, aryl or aralkyl group; m is 1 or 2; and n is an integer of 1 to 4, and a process for preparation thereof and pharmaceutical use of the same.The benzodiazepine derivatives are effective as tranquillizers, muscle-relaxants and hypnotics.

Abstract: Novel compounds of the formula: ##STR1## wherein R is a hydrogen or fluorine atom, W is an oxygen atom or an ethylenedioxy or ethylenedithio group and Z is a certain secondary amino group, which are useful as central nervous system depressants, can be prepared by the reaction of a compound of the formula: ##STR2## wherein X is a halogen atom and R and W are each as defined above with a secondary amine of the formula: H--Z wherein Z is as defined above, in case of W being ethylenedioxy or ethylenedithio, optionally followed by hydrolysis and can be reduced to give a compound of the formula: ##STR3## wherein R and Z are each as defined above, which are useful as antipsychotic and/or analgesic agents.

Abstract: Novel bicycloheptene compounds of the formula: ##STR1## wherein A is C.sub.2 -C.sub.4 alkylene; X and B are each ethylene or vinylene; R.sub.1 is hydrogen, C.sub.1 -C.sub.8 alkyl, C.sub.4 -C.sub.8 alkoxyalkyl, C.sub.5 -C.sub.7 cycloalkyl, C.sub.5 -C.sub.8 cycloalkylalkyl, aryl, C.sub.7 -C.sub.10 arylalkyl, C.sub.7 -C.sub.10 aryloxyalkyl; R.sub.2 is hydrogen, or C.sub.1 -C.sub.4 alkyl; and Z is carboxyl, C.sub.2 -C.sub.5 alkoxycarbonyl or C.sub.1 -C.sub.5 carbamoyl, and its non-toxic salts, which are useful as antiulcers, gastric secretion inhibitors, central nervous system regulators, and labor inducing agents.

Abstract: 2(1H)-Quinazolinone derivatives, which are useful as anti-inflammatory agents, are prepared by heating or hydrolyzing an acylurea derivative. The acylurea derivative can be prepared by either reacting an indole derivative with an oxidizing agent or reacting an imidazolidine derivative with water, an alkanol or ammonia.

Abstract: Acylhydrazone compounds having excellent pyschotropic activity which are represented by the formula: ##STR1## wherein Z is selected from the groups having the formulas: ##STR2## wherein n is an integer of from 0 to 2 and R.sup.1 -R.sup.12 are as defined hereinbelow.