Patents
Sitemap › C07 - Organic chemistry › C07D - Heterocyclic compounds › C07D 257 - Heterocyclic compounds containing rings having four nitrogen atoms as the only ring hetero atoms
Patents for C07D 257 - Heterocyclic compounds containing rings having four nitrogen atoms as the only ring hetero atoms (9,612)
10/1983
10/12/1983EP0091141A1 Process for the preparation of thioethers
10/11/1983US4409323 Silver halide photographic material
10/11/1983US4409215 Bactericides
10/11/1983US4409214 7-Acylamino-3-vinylcephalosporanic acid derivatives and processes for the preparation thereof
10/04/1983US4408042 Cephem compounds
10/04/1983US4407823 Novel phenylacetic acid derivatives
09/1983
09/28/1983EP0089834A2 Light-sensitive silver halide color photographic material
09/28/1983EP0089485A2 Process for preparing 5-chloro-1H-tetrazolo-1-carboxylic-acid esters, and a process for preparing the appropriate dichloroisonitrile-carboxylic-acid esters
09/27/1983US4406902 Dipeptidase inhibitors
09/21/1983EP0088831A1 Process for the preparation of thioethers
09/20/1983US4405617 3-(Propynyltetrazol)thiomethyl-3-cephems
09/06/1983CA1153368A1 15-sulfonamidoprostaglandin derivatives
08/1983
08/30/1983CA1153003A1 5-(dihydroxphenoxy) tetrazoles as sweeteners
08/30/1983CA1152988A1 Tetrazolyloxycarboxylic acid amides, a process for their preparation and their use as herbicides
08/24/1983EP0086340A1 3-(1H-tetrazol-5-yl)-4(3H)-quinazolinones
08/23/1983CA1152502A1 N-(tetrazol-5-yl) prostaglandin carboxamides
08/16/1983US4399285 Herbicides
08/03/1983EP0084667A2 Phenylethylene derivatives, their preparation and use as medicines
08/02/1983CA1151150A1 Cephalosporins
07/1983
07/12/1983US4392968 Oil additives; lubricants; oxidation and corrosion resistance
07/05/1983CA1149375A1 Cephalosporins and preparation
06/1983
06/28/1983US4390618 Silver halide photographic light-sensitive materials
06/28/1983US4390613 Diffusion transfer photographic system utilizing substituted phenylmercaptoazoles
06/28/1983US4390534 Cephem and cepham compounds
06/22/1983EP0081971A2 Novel cephalosporin compound and process for preparing the same
06/22/1983EP0081730A1 Process for the preparation of hetaryloxyacetamides
06/22/1983EP0081689A1 Process for bleaching colour-photographic materials
06/14/1983US4388312 Hypotensive agents, antiallergens
06/14/1983CA1148154A1 Thiols and their preparation
06/14/1983CA1148141A1 3-vinyl cephalosporins and preparation
06/08/1983EP0080631A1 Silver halide photographic light-sensitive materials
06/08/1983EP0080478A1 N-hydroxyethylated macrocyclic polyamines, the preparation of such amines and their use.
06/07/1983US4387159 Light sensitive, color photographic silver halide compositions with DIR-couplers
06/07/1983US4387158 Resorcinol compounds as photographic couplers-black images
06/01/1983EP0080371A1 Diphenoxypropane derivatives, their production and use
06/01/1983EP0080051A2 Heterocyclic compounds and antibacterial and antifungal compositions containing the same as active ingredients
05/1983
05/31/1983US4386212 Process for the production of 5-(4'-chloro-5'-sulfamoyl-2'-thenylamino)-phenyltetrazole
05/25/1983EP0079630A1 Photographic elements containing ballasted compounds
05/03/1983CA1145757A1 Novel process to produce 5-mercaptotetrazoyl -1 acetic acid
04/1983
04/26/1983US4381299 7-Amino-thiadiazole oxyimino derivatives of cephem and cepham compounds
04/06/1983EP0076030A2 Substituted amide derivatives, processes for preparing them, pesticidal compositions containing them and processes for combating unwanted vegetation and fungi
03/1983
03/31/1983WO1983001063A1 1-sulfo-2-oxoazetidine derivatives and process for their preparation
03/22/1983US4377634 Method for forming high contrast photographic image
03/09/1983EP0073456A1 Tetraazaannulene cobalt complex compounds and method for preparation thereof
03/03/1983WO1983000689A1 1-sulfo-2-oxoazetidine derivatives and process for their preparation
02/1983
02/22/1983US4374994 Process for preparation of 5-mercaptotetrazolyl-1-acetic acid
02/09/1983EP0071570A1 Process for the production of a photographic black dye image
02/09/1983EP0071569A1 Photographic silver halide material comprising resorcinol compounds as colour couplers
02/09/1983EP0071434A2 Heterocyclic derivatives
02/08/1983US4372953 Tetrazole derivatives, and anti-ulcer composition containing the same
02/01/1983US4371604 Photographic material suited for use in diffusion transfer photography
01/1983
01/25/1983US4370332 Muscle relaxants
01/18/1983CA1139761A1 Tetrazolylalkoxycarbostyril derivatives and process for producing the same
01/12/1983EP0069373A1 (5R, 6R)-Penem compounds, their production and use
01/05/1983EP0069066A1 Resorcinols and their preparation
12/1982
12/28/1982CA1138457A1 2-hydroxy-5-(1-hydroxy-2- piperazinylethyl)benzoic acid derivatives
12/21/1982US4365077 Antifertility, antiulcer
12/21/1982US4365062 Cephalosporin derivatives
12/14/1982CA1137475A1 Aminoalkylbenzene derivatives
12/09/1982WO1982004252A1 N-hydroxyethylated macrocyclic polyamines, the preparation of such amines and their use
12/01/1982EP0065658A2 Utilisation of sulfenamides as antilipoxygenase agents, and medicaments containing them
11/1982
11/24/1982EP0065226A2 Sulfenamides, process for their preparation, their utilisation as medicines and their preparation
11/17/1982EP0064582A1 Starting compounds for preparing cephem compounds and processes for their preparation
11/11/1982WO1982003859A1 1-sulfo-2-oxoazetidine derivatives and process for their preparation
11/09/1982CA1135256A2 Cephalosporin esters
11/09/1982CA1135255A1 Cephalosporin esters
11/09/1982CA1135254A2 Cephalosporin esters
11/02/1982CA1134818A1 Release compounds and photographic emulsions, elements and processes utilizing them
10/1982
10/26/1982US4356207 Sweetening with 5-(dihydroxyphenoxy) tetrazoles
10/12/1982US4353915 Arthropodicides, nematocides
09/1982
09/28/1982US4351947 Tetrazole derivative
09/22/1982EP0060697A1 Heterocyclic derivatives
09/22/1982EP0060612A1 Process for the preparation of azabicyclo(3.2.0)-hept-2-ene derivatives
09/07/1982US4348399 Antiatherosclerotic and hypolipidemic 4-(monoalkylamino)phenyl alkane, alkene and alkyne carbinols, aldehydes, carboxylic acids and derivatives
08/1982
08/31/1982US4347359 1,2,4-Triazines
08/24/1982US4346076 Bis-tetrazoylmethyl substituted cephalosporin antibiotics
08/17/1982US4345024 Photographic development inhibitor releasing compound
08/10/1982US4343893 Released via electron transfer
08/03/1982CA1128765A1 Use of n,n-diallyl-dichloroacetamide for improving the tolerance by crop plants of herbicidally active acetanilides
07/1982
07/06/1982US4338452 Chemical intermediates in the preparation of cephalosporin antibiotics
07/06/1982US4338315 Antiviral method employing thiazinyl benzimidazole derivatives
07/06/1982US4338313 Cephem compounds
07/06/1982CA1127177A1 Phenylacetic acid derivatives
06/1982
06/30/1982EP0054924A2 Pharmaceutical compounds, their preparation and use
06/24/1982WO1982002043A1 1-sulfo-2-oxoazetidine derivatives and process for their preparation
06/16/1982EP0053893A1 Derivatives of clavulanic acid, their preparation and their use
06/16/1982EP0053851A1 Novel antifogging compounds and their use in silver halide photography
06/16/1982EP0053816A1 1-Sulfo-2-oxoazetidine derivatives, their production and use
06/10/1982WO1982001873A1 1-sulfo-2-oxoazetidine derivatives and process for their preparation
06/01/1982US4332800 Bactericides containing 7-aminothiadiazole groups
06/01/1982US4332798 7-Amino-thia-diazole oxyimino derivatives of cephem and cephem compounds
05/1982
05/25/1982US4331665 Cephem and cepham compounds
05/19/1982EP0051816A1 5-Phenyltetrazoles substituted by basic groups, method for their preparation and their use as drugs
05/18/1982CA1123840A2 Tetrazole derivatives
05/04/1982US4328302 Containing a phenyl-substituted tetrazole compound
05/04/1982US4328156 19-Hydroxy-19-methyl-7α-homo-PGI1 compounds
04/1982
04/27/1982CA1122603A1 Process for the preparation of arylacetic acid derivatives
04/14/1982EP0049389A1 Z-omega-substituted thio-2-(2,2-dimethylcyclopropanecarboxamido)-2-alkenoic acids, a process for preparing and an antibacterial composition containing the same
04/13/1982US4324793 4-Nitro-2-trichloromethylphenyl disulfides
04/07/1982EP0049049A1 5-Amino-tetrazole derivatives, processes for their preparation and pharmaceutical compositions containing them
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