Patents
Sitemap › C07 - Organic chemistry › C07D - Heterocyclic compounds › C07D 498 - Heterocyclic compounds containing in the condensed system at least one hetero ring having nitrogen and oxygen atoms as the only ring hetero atoms
Patents for C07D 498 - Heterocyclic compounds containing in the condensed system at least one hetero ring having nitrogen and oxygen atoms as the only ring hetero atoms (21,960)
08/1983
08/09/1983US4397861 Antibiotics
08/02/1983US4396609 Gentamicins
07/1983
07/27/1983EP0084155A2 (1,2)-Fused 1,4-benzodiazepine compounds, process for their preparation and medicines containing these compounds
07/19/1983US4394505 5-Fluorouracil derivatives
07/19/1983US4394312 Process for preparing rifamycin derivatives
07/19/1983CA1150270A1 Oxazolinoazetidinones and process therefor
07/19/1983CA1150253A1 Dibenzoimidazoazepines, -oxazepines and -thiazepines and pharmaceutical compositions containing them
07/12/1983US4393065 Animal feed and process
07/05/1983CA1149391A1 Process for the preparation of derivatives of clavulanic acid
06/1983
06/29/1983EP0082656A2 Preparation of cepham derivatives
06/28/1983CA1148953A1 Ethers based on polyalkyl-1-oxadiazaspirodecanes
06/28/1983CA1148952A1 Alkylated diaza-spirodecanes, their preparation and use as light stabilizers
06/22/1983EP0082133A2 A process for preparing intermediates useful for preparing 2-substituted-6-substituted-1-carbadethiapen-2-em-3-carboxylic acids
06/22/1983EP0081824A1 Processes for the production of antibiotic 1-oxadethiacephalosporins
06/21/1983CA1148489A1 Maytansinoids, their production and use
06/07/1983US4387231 3-Amino-2-cyano-3-(5-amino-3-phenyl-isoxazole-4-yl)-acrylonitrile
06/07/1983CA1147680A1 Maytansinoids, their production and use
06/01/1983EP0080115A2 Hexahydronaphth(1,2-b)-1,4-oxazines, process for their preparation and pharmaceutical formulation containing them
06/01/1983EP0079920A1 New aza-crown-ethers and their use.
05/1983
05/25/1983EP0079850A1 N-substituted polyalkylpiperidine-4-spirooxazolones
05/25/1983EP0079675A1 Oxazolidinedione derivatives
05/24/1983US4385175 Esters of retinoic acid and azetidinone derivatives
05/24/1983CA1146887A1 Antibiotic c-15003 pho and production thereof
05/24/1983CA1146885A1 Antibiotically active compounds and their fermentative preparation
05/18/1983EP0078839A1 Heterocyclic amidinoureas
05/17/1983US4383998 Furo-(3,4-c)-pyridine derivatives and their pharmaceutical use
05/10/1983US4382892 Benzoxazine derivatives
05/03/1983CA1145746A1 2-(perhydro-1,4-diazino)-pyrimido[5,4-d] pyrimidines, their preparation and pharmaceutical compositions containing them
04/1983
04/19/1983US4380629 Styryl-like compounds showing a color-developing and bleaching behavior with improved stability and prolonged lifetime
04/12/1983US4379788 2-Phenyl-pyrimidones
04/06/1983EP0076089A2 Azabicycloalkane derivatives, process for their preparation, and a pharmaceutical composition containing them
04/06/1983EP0075840A2 Heterocyclic phenyl ethers, process for their preparation and herbicides containing them
04/05/1983US4379149 Process for introducing an oxygen-containing functional group into ansamycins
04/05/1983US4379032 Process for preparing oxazolineazetidinone derivatives
04/05/1983CA1144096A1 Demethyl maytansinoids
03/1983
03/29/1983CA1143728A1 Imidazodiazepine derivatives
03/23/1983EP0074741A1 Method of producing alpha2 antagonism
03/15/1983US4376862 3-Amino-2-cyano-3-(5-amino-3-aryl-isoxazolo-4-yl)-acrylic acid methyl ester
03/09/1983EP0073506A1 Heterocyclic compounds, their preparation and use
03/09/1983EP0073451A2 Carbapenam compound and processes for the preparation thereof
03/08/1983US4376207 Chiral synthesis of amino sugars
03/08/1983US4376166 Nocardia strain
03/08/1983CA1142518A1 Imidazo-rifamycin derivatives with antibacterial utility
03/08/1983CA1142467A1 Production of antibiotic c-15003 pnd
03/02/1983EP0072960A2 1,5-Diphenylpyrazolin-3-one compounds, process and intermediates for their preparation and medicines containing these compounds
02/1983
02/22/1983US4374842 Central nervous system
02/16/1983EP0071908A1 1-, and 1,1-disubstituted-6-substituted-2-carbamimidoyl-1-carbadethiapen-2-em-3-carboxylic acids, a process for preparing and an antibiotic composition containing the same
02/16/1983EP0071819A1 Dihydropyridines with a positive inotropic activity, their use in pharmaceutical preparations, and processes for their preparation
02/09/1983EP0071197A1 Heterocyclic multifunctional amine adducts and curable compositions containing the same
02/08/1983US4372962 Clavulanic acid derivatives their preparation and use
02/08/1983US4372961 Reacting a 3-aminorifamycin s with a 4-piperidone, antibiotics
02/01/1983US4371533 Antitumor, antiprotozoa and antifungal agents
02/01/1983CA1140526A1 Oil-soluble hydrocarbyl substituted 1-aza-3,7- dioxabicyclo [3.3.0.] oct-5-yl methyl alcohols, as additives for functional fluids
01/1983
01/19/1983EP0070171A1 Novel piperidine derivatives, processes for preparation thereof and pharmaceutical compositions containing same
01/11/1983US4368156 Preparation of 4-haloazetidin-2-ones from 4-sulfinoazetidin-2-ones
01/05/1983EP0068806A2 Basic acyl amides of (5-amino-1,3-dialkylpyrazol-4-yl)(aryl)methanones, processes for their production, and pharmaceutical compositions containing such compounds
01/05/1983EP0068544A2 Novel N-aryl-piperazinealkanamides
01/05/1983EP0068327A1 Protection from ultraviolet light by use of novel ultraviolet absorber
01/04/1983CA1138867A1 Antibiotic crystalline epimer
01/04/1983CA1138866A1 Chemical process for preparing isoxazolo-benzoxazinone derivatives
12/1982
12/28/1982US4366316 From oxazolinoazetidinone and acid
12/28/1982US4366189 Whiteners
12/22/1982EP0067792A1 Stilbene derivatives
12/22/1982EP0067517A1 Process for the preparation of an enantiomer of a beta-lactam derivative
12/21/1982US4364866 Antibiotics, antiprotozoa, antitumor
12/21/1982US4364768 3'-(Substituted phenyl)-spiro[isobenzofuran-1(3H),5'(4'H)-isoxazol]-3-ones and their use as plant growth regulants
12/14/1982US4363762 Process for preparing imidazodiazepines
12/14/1982CA1137493A1 Thermolysis of 2-(3-aryl-isoxazol-5-yl) benzoic acids, salts and halides from 3'-(aryl) -spiro [isobenzofuran-1(3h), 5'(4'h)isoxazol] -3-ones
12/14/1982CA1137475A1 Aminoalkylbenzene derivatives
12/09/1982WO1982004253A1 New aza-crown-ethers and their use
12/07/1982US4362731 Myotonolytic use of 4,5,6,7-tetrahydroisoxazolo [5,4-c] pyridin-3-ol and derivatives thereof
12/07/1982US4362663 Antitumor agents, fungicides, antiprotozoal agents
12/01/1982EP0065864A1 Anti-hypertensive 1-substituted spiro (piperidine-oxobenzoxazines)
12/01/1982EP0065730A1 9-Thiomaytansinoids, their production and use
11/1982
11/30/1982US4361650 Bacillus, streptomyces or actinomyces
11/30/1982CA1136621A1 Maytansinoids, their production and use
11/25/1982WO1982004047A1 Heterocyclic amidinoureas
11/23/1982US4360521 Hypotensive agents; vasodilation; cardiovascular disorders
11/23/1982US4360462 Process for preparing maytansinol
11/16/1982US4359420 Hypotensive agent, muscle relaxants
11/09/1982US4358525 Storage stable color films for diffusion transfer
11/09/1982CA1135262A1 Maytansinoids, their production and use
11/09/1982CA1135261A1 Maytansinoids, their production and use
11/09/1982CA1135260A1 Maytansinoids, their production and use
11/03/1982EP0064033A1 5-Fluorouracil derivatives
11/02/1982US4357275 Chemical intermediates for oxapenicillins
10/1982
10/27/1982EP0063525A1 Dibenzazepine tetracyclic derivatives, process for their preparation and pharmaceutical compositions containing them
10/26/1982US4356265 Method for the production of antibiotic C-15003 P-3
10/19/1982CA1133901A1 Dechloromaytansinoids, their production and use
10/12/1982US4353910 Derivatives of 4,5,6,7-tetrahydroisoxazolo [5,4-c] pyridine-3-one, pharmaceutical compositions and methods of treatment
10/12/1982US4353901 9-(1,4-Benzodioxan-2-ylalkyl and hydroxyalkyl)-1-oxa-4,9-diazaspiro[5.5]undecan-3-ones
10/12/1982US4353900 9-(Arylalkyl or aroylalkyl)-1-oxa-4,9-diazaspiro(5.5)undecan-3-ones
10/12/1982CA1133478A1 Maytansinoids, their production and use
10/05/1982US4352818 Diazepine derivatives and their use
10/05/1982US4352809 Thiadiazolo- and oxadiazolotetrahydroisoquinolines, antidepressants
10/05/1982US4352802 Desalination of sea water
10/05/1982CA1132981A1 Maytansinoids, their production and use
09/1982
09/29/1982EP0061333A1 9-(2-(3-Indolyl)ethyl)-1-oxa-4,9-diazaspiro(5.5)undecan-3-ones
09/28/1982US4351832 2-(Piperazinyl)-4-pyrimidinamines
09/21/1982US4350816 Process for the production of 4-amino-6-hydroxy-3-phenyl isoxazolo [5,4-b]p
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