Matches 51 - 100 out of 198 < 1 2 3 4 >
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6228553 Pyrrolo [1,2-A] pyrimidine compound and heat-sensitive recording material using the same  
A pyrrolo[1,2-a]pyrimidine compound providing an excellent color-forming property is provided. Further, a novel cyan color-forming type diazo heat-sensitive recording material having excellent...
6166207 Preparation of bicyclic amidines and diazacycloalkenes  
In a process for preparing a bicyclic amidine by reacting a lactone and a diamine with elimination of water, water formed by elimination is removed from the reaction mixture during the reaction. A...
6165942 Heterocycle-fused pyrimidinone derivative and herbicidal composition  
A compound represented by the general formula (I) and a salt thereof: ##STR1## wherein: Rf represents a (C 1 -C 4 )haloalkyl group; X.about.Y represents NN or CHN or the like; A represents a...
6156757 1,2,3,4-tetrahydro-benzofuro[3,2-C]pyridine derivatives  
The present invention concerns the compounds of formula ##STR1## the N-oxides, the pharmaceutically acceptable addition salts and the stereochemically isomeric forms thereof, wherein each R 1 is...
6153608 Isoquinoline derivatives and drugs  
The invention relates to a compound of the following general formula [I] or a medicinally acceptable salt thereof, or a solvate thereof, ##STR1## wherein R 1 represents alkyl, alkenyl, alkynyl,...
6114286 Pyrimidinone derivatives  
The present invention provides new pyrimidinone derivative encompassed by the formula: ##STR1## wherein, R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 and G are as defined in the specification. The...
6096751 Substituted 1,2,3,4-tetrahydro-55-nitro-pyrimidines  
The present invention relates to new substituted 1, 2, 3, 4-tetrahydro-5-nitro-pyrimidines of the formula (I) ##STR1## wherein Het, R 1 , R 2 , R 3 and A are as defined herein, to processes for...
6087070 Photoactivatable nitrogen-containing bases based on α-amino alkenes  
The invention relates to organic compounds having a molecular weight of less than 1000 comprising at least one structural unit of the formula (I) ##STR1## in which R 1 is an aromatic or...
6057325 Hexahydro-pyrido(4,3-b)indole derivatives as antipsychotic drugs  
This invention concerns the compounds of formula ##STR1## the pharmaceutically acceptable addition salts and the stereochemically isomeric forms thereof, wherein Alk is C 1 -6 alkanediyl; R 1 is...
6028073 N-substituted 3-azabicyclo (3.2.0)heptane derivatives useful as neuroleptics  
N-substitued 3-azabicyclo[3.2.0]heptane derivatives of formula (I) ##STR1## in which R 1 , R 2 , A, X, Y and Z have the meanings given in the description, their method of preparation and their use...
5939415 A!-annellated pyrrole derivatives and their use in pharmacology  
The present invention relates to heterocyclic compounds with the formula ##STR1## in which R 1 to R 7 , B, a, and X have the meanings indicated in the specification. These compounds can be used...
5919788 4-(1H-indol-1-yl)-1-piperidinyl derivatives  
The present invention concerns the compounds of formula ##STR1## the pharmaceutically acceptable addition salts and the stereochemically isomeric forms thereof, wherein the dashed line designates...
5854239 Diazabicyclic neuokinin antagonists  
The present invention relates to diazabicyclic compounds and, specifically, to compounds of the formula ##STR1## wherein A, G, R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , and R 7 are as defined in the...
5753664 Heterocyclic compounds, their production and use  
A novel compound of the formula: A--Z--Ar 1 1'CO--Ar 2 wherein A is a condensed pyrimidinone or condensed pyridazinone ring; Ar 1 and Ar 2 are independently a ring; Z is a divalent group, or a...
5688799 9-Hydroxy-pyrido 1,2-a!pyrimidin-4-one ether derivatives  
The present invention is concerned with novel compounds having the formula ##STR1## the pharmaceutically acceptable acid addition salts thereof and the stereochemically isomeric forms thereof,...
5677452 Process for the manufacture of 5-dichloroacetyl-3,3,6-trimethyl-9-oxo-1,5-diazabicyclo 4.3.0! nonane  
The manufacture of 5-dichloroacetyl-3,3,6-trimethyl-9-oxo-1,5-diazabicyclo 4.3.0!-nonane I by the reaction of 3,3,6-trimethyl-9-oxo-1,5-diaza-bicyclo 4.3.0!nonane II with dichloroacetyl chloride in...
5661107 Heterocyclic compounds and their use as herbicides  
Compounds of the formula ##STR1## wherein m represents 1 or 2, X represents O, S, CH 2 or substituted CH 2 , R 1 -R 4 represent hydrogen or substituted or unsubstituted hydrocarbon groups, and Q...
5658916 Drug active on the central nervous system, a process for the preparation thereof and pharmaceutical compositions containing it  
The agent is the compound 3-{2-[4-(6-fluoro-benzo[d]isoxazol-3-yl)-3,6-dihydro-2H-pyri din-1-yl]-ethy l}-2-methyl-6,7,8,9-tetrahydropyrido [1,2-a]pyrimidin-4-one having the formula (I) ##STR1## and...
5622956 Nitro-substituted heterocyclic compounds  
Nitro-substituted heterocyclic compounds of the formula (I) ##STR1## wherein R is hydrogen or alkyl, Z is an optionally substituted aryl or optionally substituted heterocyclic group containing...
5614469 N-pyridinyl[1,2,4]triazolo[1,5-c]pyrimidine-2-sulfonamide herbicides  
Substituted N-pyridinyl[1,2,4]triazolo[1,5-c]-pyrimidine-2-sulfonamide compounds, such as N-(2-fluoro-4-methyl)-7-fluoro-5-methoxy[1,2,4]triazolo[1,5- c]pyrimidine-2 -sulfonamide, were prepared...
5612346 Risperidone pamoate  
A compound which is a pamoate acid addition salt of risperidone, compositions comprising the same and processes for preparing said compound and compositions.
5610157 N-(3-hydroxy-4-piperidinyl) (dihydrobenzofuran, dihydro-2H-benzopyran or dihydrobenzo-dioxin) carboxamide derivatives  
N-(3-hydroxy-4-piperidinyl)(dihydrobenzofuran, dihydro-2H-benzopyran or dihydrobenzodioxin)carboxamide derivatives, their N-oxide forms and pharmaceutically acceptable salts having gastrointestinal...
5599815 Antipsychotic benzoisothiazolyl piperazine derivatives  
Compounds represented by the formula (I) and pharmacologically acceptable salts thereof: ##STR1## These compounds have little extrapyramidal effect and thus are effective as an anti-psychotic agent...
5576432 Process for the manufacture of dihydropyrimidines  
A process of preparing a dihydropyrimidine compound of the structure (I): ##STR1## wherein R 1 and R 2 are bonded together to form an aromatic or heterocyclic ring, which may be substituted or...
5532243 Antipsychotic nitrogen-containing bicyclic compounds  
There are provided nitrogen-containing bicyclic compounds, pharmaceutical compositions containing these compounds and methods of using these compounds to treat physiological or drug-induced...
5512576 2-substituted 1,2,5,-thiadiazolidin-3-one 1,1-dioxides and compositions and method of use thereof  
2-Substituted 1,2,5-thiadiazolidin-3-one 1,1-dioxides, pharmaceutical compositions containing them and methods for the treatment of degenerative diseases utilizing them.
5482943 (6-fluoro-1,2-benzisoxazol-3-yl)-1-piperidinyl-alkyl-(2, 9-disubstituted-4H-pyrido[1,2-a]pyrimidin-4-one) derivatives  
Novel 2,9-disubstituted-4H-pyrido[1,2-a]pyrimidin-4-ones having the formula ##STR1## the pharmaceutically acceptable acid addition salts thereof, and the stereochemically isomeric forms thereof,...
5475105 N-substituted azabicycloheptane derivatives  
Abstract of the Disclosure: Compounds of the formula I ##STR1## where R 1 , R 2 , n , R 3 , A, X, Y and Z have the meanings stated in the description, and the preparation thereof are described. The...
5475000 3-(substituted tetrazolyl)-4-oxo-4H-pyrido-[1,2-a]pyrimidines, salts thereof, pharmaceutical compositions containing them and process for preparing same  
4-oxo-4H-pyrido[1,2-a]-pyrimidines are disclosed of the formula ##STR1## wherein R is a C 1 -6 alkyl, C 3 -6 alkenyl, C 3 -6 alkynyl, C 3 -7 cycloalkyl, --(CH 2 ) n --COOR 3 wherein R 3 is C 1 ...
5466701 Saccharin derivative proteolytic enzyme inhibitors  
Compounds having the structural formula ##STR1## which inhibit the enzymatic activity of proteolytic enzymes, and processes for preparation thereof, method of use thereof in treatment of...
5397767 6-arylpyrimidines and herbicidal use  
A class of 6-arylpyrimidines which is useful in the control of weeds is of the general formulae: ##STR1## wherein R 2 is selected from hydrogen, halo, substituted or unsubstituted alkyl,...
5387588 Pyridopyrimidine derivatives, pharmaceutical compositions containing them and process for preparing same  
The present invention relates to novel 4-oxo-4H-pyrido[1,2-a]pyrimidine-3-carboxamide derivatives of the general formula (I) and the acid addition salts thereof, pharmaceutical compositions...
5344933 Pyrrole ring-or condensed pyrrole ring-containing azomethine dye  
An azomethine dye is disclosed, represented by the general formula (I), (II) or (III): ##STR1## wherein R 1 , R 2 , R 3 and R 4 each independently represents a hydrogen atom or nonmetallic atom...
5324729 Substituted pyrimidines, pyrimidinones and pyridopyrimidines  
Substituted pyrimidines, pyrimidinones and pyridopyrimidines of formula (I) are as angiotensin II antagonists useful in the treatment of hypertension, ocular hypertension and certain CNS ailments:...
5298658 Photographic elements with reduced print-through  
A photographic element is detailed which provides for improved resolution by decreasing the blue and ultraviolet radiation typically associated with internal scatter and print-through. These and...
5294619 Arylpiperidine derivatives  
A series of novel N-alkyl or oxyalkyl arylpiperidine derivatives have been prepared, including their pharmaceutically acceptable acid addition salts, wherein the N-alkyl or oxyalkyl side chain is...
5290779 Nitro-substituted heterocyclic compounds useful as insecticides  
Nitro-substituted heterocyclic compounds of the formula (I) ##STR1## wherein R is hydrogen or alkyl, Z is an optionally substituted aryl or optionally substituted heterocyclic groun containing...
5278165 Oxazolyl imidazol[4,5-b]pyridin and pyrimidine compounds  
Oxazolyl derivatives of formula (I) ##STR1## wherein --A 1 A 2 --A 3 A 4 -- represents a bivalent radical having the formula --CHCH--CHCH-- ...
5272150 Hydroxyalkylfuranyl derivatives  
Hydroxyalkylfuranyl derivatives, the pharmaceutically acceptable acid addition salts and stereochemically isomeric forms thereof having antiallergic properties, compositions containing the same and...
5258380 (4-piperidinylmethyl and -hetero)purines  
(4-Piperidinylmethyl and -hetero)purines having antihistaminic properties and being useful agents in the treatment of allergic diseases.
5254688 Process for producing pyrido[1,2-a]pyrimidine derivative  
A pyrido[1,2-a]pyrimidine derivative which is useful as an antiallergic agent can be produced from a 2-aminopyridine derivative or a hydrazoic acid salt thereof by a one-pot and substantially...
5185335 N-(4-piperodinyl)(dihydrobenzofuran or dihydro-2H-benzopyran) carboxamide derivatives  
Piperidine derivatives of formula ##STR1## wherein A is a radical of formula ##STR2## wherein one or two hydrogen atoms in said radicals (a-1) to (a-3) may be replaced by a C 1 -6 alkyl radical; ...
5158952 3-[2-[4-(6-fluoro-1,2-benzisoxozol-3-yl)-1-piperidinyl]ethyl]-6,7,8,9 tetrahydro-9-hydroxy-2-methyl-4H-pyrido [1,2-a]pyrimidin-4-one, compositions and method of use  
The present invention relates to novel 3-piperidinyl-1,2-benzisoxazoles having long-acting antipsychotic properties and which are useful in the treatment of warm-blooded animals suffering from...
5158951 Pyridopyrimidine derivatives useful in treatment of ulcers  
The present invention relates to novel 4-oxo-4H-pyrido[1,2-a]pyrimidine -3-carbonamide derivatives of the general formula (I) and the acid addition salts thereof, pharmaceutical compositions...
5151424 Pharmacologically active (Bicyclic heterocyclyl)methyl and -hetero) substituted hexahydro-1H-azepines and pyrrolidines  
[(Bicyclic heterocyclyl)methyl and -hetero] substituted hexahydro-1H-azepines and pyrrolidines and their pharmaceutically acceptable acid addition salts having anti-histaminic properties,...
5081243 Process for producing 3-tetrazolyl pyrido[1,2-a]pyrimidine derivatives  
3-Tetrazolylpyrido[1,2-a]pyrimidin-4-one derivatives useful as an antiallergy agent are produced by reacting a cyano derivative of pyrido[1,2-a]pyrimidin-4-one compound with (i) hydrazoic acid,...
5075315 Antipsychotic hexahydro-2H-indeno[1,2-c]pyridine derivatives  
Novel hexahydro-2H-indeno[1,2-c]pyridines and their pharmaceutically acceptable acid addition salts having useful antipsychotic properties.
5068235 Diazabicycloalkane derivative  
The present invention provides a diazabicycloalkane derivative which has the following formula and is useful as medicaments for treating senile dementia, i.e., as cerebral function improving agents...
5017212 Sulfonylurea compounds and herbicidal use  
A compound of the general formula: ##STR1## wherein Q is a condensed heterocyclic group having an N atom in the bridgehead which may be substituted, W is O or S, R 1 and R 2 each are an alkyl...
5015740 Antipsychotic 3-piperazinylbenzazole derivatives  
3-Piperazinyl-1,2-benzazoles and their pharmaceutically acceptable acid addition salts having useful antipsychotic properties and being useful in the treatment of a variety of disorders in which...
Matches 51 - 100 out of 198 < 1 2 3 4 >