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)
12/1984
12/05/1984EP0127179A1 Stabilization of tetrazolium salt with cyclodextrin
12/05/1984EP0127063A2 Photographic recording material having a precursor of a photographically active compound
12/05/1984EP0127062A2 Alkylene-bis-heterocyclyl biguanides
12/05/1984EP0126859A1 Intermediate compounds for preparing cephem compounds and processes for their preparation
12/04/1984CA1178962A1 Process for the preparation of hetaryloxyacetamides
11/1984
11/27/1984CA1178609A1 Fluoromethylthioacetic acid compounds
11/21/1984EP0125523A2 Silver halide photographic light-sensitive material
11/20/1984US4483853 Amino acid isomers, their production and their medicinal use
11/20/1984CA1178279A1 5-phenyltetrazoles containing basic substituents, a process for their preparation and their use as drugs
11/20/1984CA1178108A1 Additives for improving ruminant feed utilization
11/14/1984EP0125207A1 2-Tetrazolylpropyl-2-penem derivatives, process for their preparation, pharmaceutical compositions containing them and their use
11/13/1984US4482629 Light-sensitive silver halide color photographic material
11/13/1984US4482566 Antiulcer agents
10/1984
10/31/1984EP0123541A1 Leukotriene antagonists
10/31/1984EP0123024A2 7-Acylamino-3-vinylcephalosporanic acid derivatives, processes for their preparation, pharmaceutical compositions containing them; their starting compounds and their preparation
10/30/1984CA1177082A1 Sulfone compounds and photographic products and processes
10/23/1984US4478843 5-Phenyltetrazoles and their use as salidiuretics
10/16/1984US4477662 2-Substituted thio carbapenem derivatives
10/16/1984US4477563 Silver halide color photographic light-sensitive material
10/16/1984US4477391 Amino acid isomers, their production and their medicinal use
10/09/1984CA1175805A1 Cephalosporin derivatives
10/02/1984US4474966 19-Hydroxy-7a-homo-PGI1 and 19-hydroxy-19-methyl-7a-homo-PGI1 compounds
10/02/1984US4474792 N-Tetrazolyl benzamides and anti-allergic use thereof
09/1984
09/25/1984CA1175052A1 Derivatives of clavulanic acid, their preparation and their use
09/18/1984CA1174676A1 1-oxa-beta-lactam antibiotics
09/18/1984CA1174675A1 Bis-tetrazolemethyl substituted beta-lactam antibiotics
09/18/1984CA1174668A1 Bis-tetrazoylmethyl substituted cephalosporin antibiotics
09/12/1984EP0118087A2 Silver halide color light-sensitive material
09/05/1984EP0117511A2 Silver halide color photographic light-sensitive material
09/05/1984EP0117368A1 Guanidinoazolyl derivatives as histamine H2 antagonists
08/1984
08/29/1984EP0117109A2 Novel cephalosporin compound and a process for preparing same
08/29/1984EP0117100A1 Triazole antifungal agents
08/28/1984US4468515 2-Substituted oxyimino-2-(5-amino-1,2,4-thiadiazol-3-yl)acetic acids
08/21/1984CA1173028A1 Quinone derivatives, their production and use
08/15/1984EP0115997A2 Derivatives of omega mercaptopropanamides, and their homologues, process for their preparation, their use as medicines, compositions containing them and intermediates obtained
08/15/1984EP0115690A1 Dibenzocycloheptenylidenes
08/14/1984US4465630 Tetraazaannulene cobalt complex compounds and method for preparation therefor
08/01/1984EP0114750A2 Beta-lactam antibacterial agents
07/1984
07/31/1984US4463179 1H-1,2,3-triazol-5-ylthio ester of N-carbobenzyloxy-p-hydroxyphenylglycine
07/31/1984US4463173 Cephalosporin derivatives
07/31/1984US4463000 Bactericides
07/31/1984US4462999 Cephalosporins
07/25/1984EP0114128A1 3-Amino-2-oxo-azetidine derivatives containing in position 1 a nitrogen heterocyclic radical, process for their preparation, their use as therapeutical agents and intermediates for their preparation
07/24/1984US4461772 Additives for improving ruminant feed utilization
07/10/1984US4459404 Skin disorders
07/10/1984CA1170660A1 Bis-tetrazolemethyl thiols
07/03/1984US4458011 Ballasted compounds and photographic elements containing such compounds
07/03/1984US4458010 Process for bleaching color photographic sensitive materials
07/03/1984US4457928 Cephem compounds
06/1984
06/27/1984EP0112283A1 Heterocyclyl-thio compounds, process for their preparation, pharmaceutical compositions containing them and their use
06/27/1984EP0111994A1 (1-Arylcyclobutyl) alkylamine derivatives, their preparation and their use as therapeutic agents
06/26/1984US4456754 Process for the preparation of cephalosporin derivatives using thioesters
06/19/1984US4455428 Herbicides
06/19/1984US4455421 Antifertility, antiulcer agents; tetrazole derivatives
06/13/1984EP0110826A1 6-Hydroxy lower alkyl penem compounds, process for their preparation, pharmaceutical compositions containing them and their use
06/13/1984EP0110541A1 Organic compounds and their pharmaceutical use
06/12/1984US4454323 1-Methyltetrazol-5-ylthio ester of cyanomethylthioacetic acid
05/1984
05/29/1984US4451555 Antifogging compounds and their use in silver halide photography
05/23/1984EP0109362A1 Hetereocyclic compounds, process for their preparation, pharmaceutical compositions containing them and their use
05/23/1984EP0108977A2 Starting compounds for preparing 7-acylamino-3-substituted cephalosporanic acid derivatives and process for their preparation
05/16/1984EP0108592A1 Leukotriene antagonists
05/16/1984EP0108488A1 (1-Arylcyclobutyl) (heterocyclyl) methylamine compounds, their preparation and their use as therapeutic agents
05/16/1984EP0108181A1 Dibenzo(b,i)-1,4,8,11-tetraaza(14)annulenocobalt(III) iodide
05/15/1984US4448878 Silver halide photographic light-sensitive materials
05/09/1984EP0107859A1 Tetrazole compounds, process for preparing the same and antibacterial and antifungal compositions containing the same as active ingredient
05/08/1984US4447440 Antiinflammatory agents, antiallergens
05/08/1984US4447429 Antibiotics, bactericides
04/1984
04/25/1984EP0106140A2 Benzoic acid derivatives
04/17/1984US4443443 Bactericides
04/10/1984US4442115 2'Hydroxy tetrazole-5-carboxanilides and anti-allergic use thereof
04/04/1984EP0104885A1 Leukotriene antagonists, their production, and compositions containing them
04/04/1984EP0104468A1 Arachidonic acid analogues as anti-inflammatory and antiallergic agents
03/1984
03/27/1984US4439518 Process for the production of a photographic image
03/14/1984EP0102821A1 Silver halide color photographic light-sensitive material
03/14/1984EP0102476A1 Method of modulating the immune response system in mammals
02/1984
02/21/1984US4432986 Tetrazoles bonded to certain polycyclic aromatic systems and anti-allergic use thereof
02/21/1984US4432902 Method for synthesizing HMX
02/14/1984US4431642 Cephem compounds
02/14/1984CA1162196A1 Tetrazole derivatives having prophylactic and therapeutic activities against peptic and duodenal ulcers
01/1984
01/31/1984CA1161430A1 Imidazole and tetrazole derivatives of 7-[(2- amino-4-thiazolyl)-oximino] cephalosporins
01/24/1984CA1161044A1 5-amino-tetrazole derivatives of retinoic acids, their preparation and pharmaceutical formulations containing these derivatives
01/17/1984US4426531 Process for the preparation of 1H-tetrazole-1 compounds using trimethylsilyl azide
01/17/1984CA1160637A1 Tetrazole derivatives, process for the preparation thereof, and anti-ulcer composition containing the same
01/10/1984US4425340 Antibiotics, bactericides
12/1983
12/27/1983US4423224 4-Me-1-(2-(1H-tetrazol-5-yl)ethyl)benzene sulfonate and N-2-(1H-tetrazol-5-yl)ethyl methanesulfonamide
12/27/1983US4423213 7-Acylamino-3-vinylcephalosporanic acid derivatives and processes for the preparation thereof
12/27/1983US4422866 Antidotes for protecting plants from herbicide damage
12/27/1983CA1159465A1 Oil additives containing a thiocarbamyl moiety
12/27/1983CA1159452A1 (5e)-9-deoxy-6,9-epoxy-prostaglandin derivatives
12/27/1983CA1159451A1 Photographic material suited for use in diffusion transfer photography
12/13/1983US4420554 Silver halide photosensitive materials
12/13/1983US4420477 Antibiotics, bactericides
12/06/1983US4419357 3-(1H-Tetrazol-5-yl)-4(3H)-quinazolinones
11/1983
11/30/1983EP0095029A1 5-Thio-tetrazol compounds and their preparation
11/29/1983US4418140 Antifogging agents
11/24/1983WO1983004021A1 2,3,4-trinor-1,5-inter-m-phenylene-prostacycline-i2 analogues, process for the preparation thereof and pharmaceutical compositions containing the same
11/22/1983US4417047 Acylation using thiol ester
11/22/1983US4416879 Cephem compounds
11/01/1983US4413000 β-Lactam antibiotics, their preparation and use
10/1983
10/18/1983US4410537 3-hydroxy-2-formylphenoxypentanoic acid derivatives
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