Patents
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Patents for C07D 241 - Heterocyclic compounds containing 1,4-diazine or hydrogenated 1,4-diazine rings (18,673)
01/1992
01/01/1992CN1057460A Process of preparing linearly-extended polyalkylenepolyamines employing metal silicate catalysts
12/1991
12/31/1991US5077306 Fungicidal n,n'-diacylaminals
12/28/1991CA2045755A1 Thiazolidinecarboxylic acid amide derivatives having anti-allergic activity, their preparation and their use
12/24/1991US5075488 Soil disease-controlling cyano and ester derivatives of cyclopentenyl amine
12/24/1991US5075020 Nitrogen-heterocyclic disulfides as oil additive concentrates
12/23/1991WO1992000271A1 Process of preparing linearly-extended polyalkylenepolyamines employing metal silicate catalysts
12/23/1991CA2085999A1 Process of preparing linearly-extended polyalkylenepolyamines employing metal silicate catalysts
12/17/1991US5073635 Process of preparing linearly-extended polyalkylenepolyamines employing metal silicate catalysts
12/16/1991WO1991019719A1 Substituted naphthoxazines useful as dopaminergics
12/16/1991CA2083146A1 Substituted naphthoxazines useful as dopaminergics
12/15/1991WO1991019702A1 3-aryl-2-hydroxypropionic acid derivatives and analogs as hypoglycemic agents
12/15/1991CA2084898A1 3-aryl-2-hydroxypropionic acid derivatives and analogs as hypoglycemic agents
12/11/1991EP0220297B1 Nitrogen-containing heterocycles
12/11/1991CN1015056B Process for purifying raw n-( 2-hydroxyethyl ) -2-methyl-3-carboxylic acid amido-quinoxalin-1, 4-di-n-oxide
12/10/1991US5072042 Phenylhydrazones, the manufacture thereof and therapeutic and cosmetic compositions prepared therefrom
12/10/1991US5071860 Insecticidally active substituted heteroaryl phenyl ethers
12/04/1991EP0459692A2 Alkyl substituted piperazines and use as chain extenders in polyurea elastomer systems
12/04/1991EP0459673A2 Piperazine derivatives as chain extenders in polyurea elastomer systems and method of making same
12/04/1991CN1056693A Pharmachutical compounds
12/03/1991CA1292739C Heteroaromatic acetylenes useful as antihypertensive agents
12/03/1991CA1292738C Aminopyrazinones and aminotriazinones
11/1991
11/26/1991US5068053 Liquid crystals for optical apparatus
11/21/1991EP0456826A1 Amine derivatives
11/20/1991CN1014789B Process for preparing replacable bridged heavy nitrogen bicycloalkyl carbostyril carboxylic acid
11/19/1991US5066808 Pyridyl insecticidally active cyano compounds
11/19/1991CA1292236C Process for preparing n-alkylated amino acids and esters thereof
11/14/1991DE4112861A1 Prodn. of max. colour and aroma in prepn. of malt prod. - by injecting acid, base or electrolyte soln. to control pH during extrusion of cereal grains
11/13/1991EP0456185A2 Renin inhibitors
11/13/1991EP0456067A1 2,3-Disubstituted quinoxalines as growth enhancers for animals
11/12/1991US5064843 Pyrid-3-yl thioformamide compounds which have useful pharmaceutical utilities
11/12/1991US5064569 Liquid crystals, chirally tilted, phenyl carboxylates
11/12/1991CA2041825A1 Renin inhibitors
10/1991
10/31/1991WO1991016299A1 Fungicidal oxime carbamates
10/30/1991EP0454436A1 Pharmaceutical compounds
10/29/1991US5061706 2,3-quinoxalinediones for use as neuroleptics
10/29/1991CA1291343C Synergistic plant growth regulator compositions
10/23/1991EP0453398A2 Nitroenamine derivatives as pesticides
10/23/1991EP0452782A1 Novel intermediates for preparing guanidine derivatives, their preparation and use
10/23/1991EP0452587A1 Dihydroxy sulfonamide and sulfinamide renin inhibitors
10/22/1991US5059709 Process for the synthesis of α-[(dialkylamino)substituted-methylene]-β-oxo-(substituted)propanentriles
10/22/1991US5059598 Antiinflammatory agents; lipoxygenase inhibitors; arthritis; asthma
10/16/1991EP0451948A1 Heterocyclicacetonitriles and their fungicidal use
10/16/1991EP0306521B1 Ethine derivatives as compounds of liquid crystal phases
10/16/1991CN1055356A Nitroenamine derivatives
10/15/1991US5057527 Method of preventing infestation of fleas
10/15/1991US5057518 Pharmaceutical preparations
10/14/1991CA2040385A1 Intermediates for preparing guanidine derivatives, their production and use
10/09/1991EP0451130A2 Use of amiloride and other pyrazine derivatives for preventing or treating ocular neovascularization
10/09/1991EP0450039A1 Dihydro-1,2 oxo-2 quinoxaline derivates, their preparation and their application in therapeutics.
10/09/1991EP0449917A1 Explosion-proof 1-dimethylamino-3-dimethylimino-2-arylprop-1-ene salts, process for their preparation, and their use
10/09/1991EP0449871A1 Method for predicting biological activity of antibiotics, and novel non beta-lactam antibacterial agents derived therefrom
10/08/1991US5055581 Dehydrochlorination reaction between n-alkyl substituted piperazine and bis(-chloroalkyl) ether; useful for urethane forming reaction
10/08/1991US5055471 Fungicides
10/08/1991US5055221 Smectic liquid-crystalline phases
10/08/1991CA1290326C Acrylic acid amides
10/07/1991CA2039779A1 Nitroenamine derivatives
10/03/1991WO1991008510A3 Organic optical elements and nonlinear optical devices
10/02/1991EP0449385A2 Substituted cyclohexanediones and their herbicidal uses
10/02/1991EP0449295A1 Novel quinoxalinone derivative
10/01/1991WO1991015123A1 Substituted cyclohexanediones and their herbicidal uses
10/01/1991CA2054732A1 Substituted cyclohexanediones and their herbicidal uses
09/1991
09/24/1991US5051523 Transcomplexing a complex of a beta-dicarbonyl metal with a chelating agent
09/24/1991US5051435 Pharmaceutical preparations
09/24/1991US5051434 Insecticidally active nitro guanidine compounds
09/24/1991US5051422 2-substituted-1(4)-aryl piperazines and the process for their preparation
09/24/1991CA1289558C Purification of 1-(alkylamino)-alkyl-2-keto-1,4- diazacycloalkanes
09/18/1991EP0447285A1 Naphthalene derivatives, procedure for their preparation and pharmaceutical compositions containing them
09/17/1991WO1991013878A1 Quinoxaline compounds and their preparation and use
09/17/1991US5049679 Carboxamide derivatives
09/17/1991US5049576 Carboxamide derivatives
09/17/1991US5049561 Anthelmintic acylhydrazones, method of use and compositions
09/17/1991CA2078429A1 Quinoxaline compounds and their preparation and use
09/16/1991WO1991014378A1 Process for manufacturing aspartame from a diketopiperazine and novel intermediates and derivatives therefor
09/16/1991CA2060515A1 Process for manufacturing aspartame from a diketopiperazine and novel intermediates and derivatives therefor
09/13/1991CA2037162A1 Heterocyclicacetonitriles and fungicidal use
09/11/1991EP0445796A2 Derivatives of acetic acid
09/11/1991EP0445698A1 Thiocarbamoylacetonitrile compounds
09/10/1991US5047540 Platelet Activating Factor Antagonists and Antitumor Agents
09/10/1991US5047417 Butenoic or propenoic acid derivatives
09/10/1991US5047404 Chemical compounds
09/10/1991US5047172 W-substituted, optically active alkanol ester derivatives
09/10/1991CA2037153A1 Acetic acid derivatives
09/08/1991WO1991013874A1 Derivatives of glycinamide, their preparation and medicaments containing them
09/08/1991CA2074357A1 Glucinamid derivatives, their preparation and drugs containing them
09/06/1991CA2037483A1 Aminobenzenesulfonic acid derivative
09/04/1991EP0444807A1 Polyquinoxaline compositions and their method of preparation
09/04/1991EP0444619A2 Process for producing 2-hydroxyquinoxaline derivatives
09/04/1991EP0444286A1 Sulphonylated pyrimidine carboxylic acid amides
09/03/1991US5045530 Conprising a micelle or a vesicle of a cationic teniside based on a hydrophobic alkyl-substituted pyridinium compound and a hydrophobic drug; drug delivery; skin disorders
09/02/1991CA2037136A1 Sulphonylated pyrimidinecarboxamides
08/1991
08/27/1991CA1288099C Neurologically active pteridine analogues
08/22/1991CA2035353A1 Polyquinoxaline compositions and the method of preparation
08/21/1991EP0442172A1 Oxime derivatives and Herbicides containing the same as an active ingredient
08/21/1991EP0441976A1 3,6-diamino-2,5-pyrazinedicarbonitrile and production thereof
08/20/1991US5041681 Chemical process
08/14/1991CN1013476B Sulfur dioxide removal from gas streams using hydroxyalkyl substituted pipe razinones
08/09/1991WO1991012241A1 Hydrazine derivatives
08/09/1991CA2075496A1 Hydrazine derivatives
08/07/1991EP0439556A1 Heterocyclic peptide renin inhibitors
08/06/1991US5037983 6,7-dihydroxyquinoxalines as intermediates to beta-lactam antibiotics
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