Patents
Patents for C07D 257 - Heterocyclic compounds containing rings having four nitrogen atoms as the only ring hetero atoms (9,612)
12/1988
12/28/1988EP0296732A1 Leukotriene antagonists
12/28/1988EP0296731A1 Leukotriene antagonists
12/28/1988EP0296522A2 Functionalized polyamine chelants and rhodium complexes thereof and process for their preparation
12/28/1988CA1247628A Resorcinol ethers
12/28/1988CA1247614A Five membered heterocyclic ring containing n- (bicyclic heterocyclyl)- 4-piperidinamines
12/27/1988US4794180 Recrystallization and precipitation in toluene and a gammalactone
12/27/1988US4794146 Oil additives containing a thiocarbamyl moiety
12/27/1988US4794109 Antibiotic
12/14/1988CN88101939A Improvement in or relating to leukotriene antagonists
12/13/1988US4791210 Reacting acetonitrile with alkali or ammonium azide; trialkyl amine as solvent, its hydrochloride as catalyst;
12/07/1988CN88103277A N-alkylsulfurylanilline derivatives, process for preparing them and pharmaceutical composition containing same
11/1988
11/30/1988EP0292979A2 New alkanesulfonanilide derivatives, processes for preparation thereof and pharmaceutical composition comprising the same
11/30/1988EP0292800A2 Amino acid derivatives
11/30/1988EP0292689A2 Substituted 1,4,7-triscarboxymethyl-1,4,7,10-tetraazacyclo-dodecane and analogs
11/23/1988EP0291969A2 Tetrazole intermediates to antihypertensive compounds
11/22/1988US4786311 Herbicidal sulfonamides
11/15/1988US4785094 Crystallization of beta HMX
11/09/1988CN88101940A Improvements in or relating to leukotriene antagonists
11/08/1988CA1244420A1 Quinolone derivatives
11/03/1988WO1988008422A1 Substituted cyclic complex-forming substances, complexes and complex salts, process for manufacturing same, and pharmaceutical agents which contain them
11/02/1988EP0288810A1 Heterocyclic neophane analogs, processes for their preparation and their use as pesticides
11/01/1988US4782073 Amides of [(5,6-dichloro-3-oxo-9-alpha-substituted-2,3,9,9-alpha-tetrahydrofluoren-7-yl-oxyl]acetic acids, and pharmaceutical compositions thereof
11/01/1988US4782012 Development inhibitors, carbaloxyalkyl-substituted mercaptotetrazole-releasing compounds
11/01/1988CA1244034A1 Process for preparing 3-amino-2-oxo-azetidine having a nitrogen-containing heterocyclic radical in position 1; derivatives thus obtained
11/01/1988CA1244029A1 Preparation process of novel - mercaptopropanamide derivatives and derivatives thus obtained
10/1988
10/26/1988EP0288305A1 Di-t-butylphenyl alkyl and benzyl ethers
10/26/1988EP0288190A1 Improvements in or relating to leukotriene antagonists
10/26/1988EP0288189A1 Improvements in or relating to leukotriene antagonists
10/26/1988EP0288122A2 A method in the production of crystalline explosives
10/26/1988CN88102139A Process for preparing ligands nitrogenous cycle
10/26/1988CN88102112A Heterocyclic neophenan alogue, process of preparation and used as insecticide thereof
10/25/1988US4780469 (Fused) benz(thio)amides and pharmaceutical use
10/25/1988CA1243672A1 Crystallization method
10/19/1988EP0287465A1 Cyclic ligands containing nitrogen, metal complexes formed by these ligands, diagnostic compositions containing them and process for their preparation
10/19/1988EP0287436A1 Monofunctionalized cyclic tetramines, process for their preparation, their polymers and use of these polymers
10/19/1988CN88100650A Anti-inflammotory agent
10/12/1988EP0286364A2 Substituted Di-t-Butylphenols
10/12/1988CN88100585A Anti-inflammatory agents
10/11/1988CA1243024A1 Herbicidal 1-aryl-4-substituted-1,4-dihydro-5h- tetrazol-5-ones and sulfur analogs thereof
10/05/1988EP0284632A1 Phenylalanine derivative and proteinase inhibitor
09/1988
09/28/1988CN88100911A Antihypercholesterolemic tetrazole compounds
09/21/1988EP0283040A2 Silver halide photographic material
09/20/1988US4772712 Pre-and postemergence herbicides
09/20/1988CA1242196A1 Leukotriene antagonists
09/20/1988CA1242195A1 Leukotriene antagonists
09/20/1988CA1242194A1 Phenyl ketone derivatives as leukotriene antagonists
09/13/1988US4771064 Benzoic acid and benzoic acid ester derivatives having antiflammatory and analgesic activity
09/07/1988WO1988006584A1 Antihypercholesterolemic tetrazole compounds
09/07/1988EP0281118A2 Silver halide photographic material
09/07/1988CN88100993A Anti high cholesterol blood tetrazole compound intermediate product and its preparing method
09/06/1988US4769482 Cyano and thiocyano intermediates
08/1988
08/30/1988US4767854 Separation of RDX and HMX
08/30/1988US4767776 N-1H-tetrazol-5-yl-2-naphthalene carboxamides and their use as antiallergy and antiinflammatory agents
08/24/1988EP0279466A2 Novel naphthalene derivatives and antiallergy and anti-inflammatory pharmaceuticals
08/23/1988US4766120 Tetrazole derivatives, having a further unsaturated heterocyclic ring anti-ulcer composition containing the same and method for treating ulcers
08/17/1988EP0278595A2 Fungicides
08/17/1988EP0278542A2 Preparation of tetrazole compounds
08/17/1988EP0252982A4 Herbicidal 1-aryl-4-sustitutted-1,4-dihydro-5h-tetrazol-5-ones and sulfur analogs thereof.
08/16/1988US4764623 N-(1H-tetrazol-5-yl-alkylphenyl)polyfluoroalkanamides
08/16/1988US4764525 N-1H-tetrazol-5-ylbenzamides having use as antiallergy and antiinflammatory agents
08/16/1988US4764521 Leukotriene antagonists and a method of use there as
08/16/1988CA1240689A1 Resorcinol compounds and their production
08/16/1988CA1240682A1 Acetanilides
08/02/1988CA1239932A1 Preparation of 1-arylcyclobutylmethylamine compounds
07/1988
07/27/1988EP0276065A1 Anti-inflammatory agents
07/27/1988EP0276064A1 Anti-inflammatory agents
07/27/1988EP0107693B1 2,3,4-trinor-1,5-inter-m-phenylene-prostacyclin-i2 analogues, process for the preparation thereof and pharmaceutical compositions containing the same
07/20/1988EP0275131A1 Herbicidal oxoindanes and tetrahydronaphthalenes
07/20/1988EP0274867A2 Pharmaceutically active compounds
07/13/1988CN87108295A Alkanesulfonanilide derivatives, process for preparation thereof and pharmaceutical composition comprising same
07/06/1988EP0273369A2 New alkanesulfonanilide derivatives, processes for preparation thereof and pharmaceutical composition comprising the same
07/05/1988US4755605 Process for preparing biologically active amides
07/05/1988US4755524 Novel phenolic thioethers as inhibitors of 5-lipoxygenase
07/05/1988US4755518 Imidazolyl or tetrazolyl substituted benzoic acid derivatives and pharmaceutical compositions thereof
06/1988
06/22/1988EP0272217A2 Processing of photographic silver halide materials
06/15/1988EP0270971A2 Substituted benzamides
06/08/1988EP0269656A1 Novel malonic acid derivative compounds and compositions thereof for retarding plant growth.
06/08/1988EP0269646A1 Photographic system.
06/08/1988CN86108740A Process for prepn. of herbicidal sulfonamides
06/01/1988EP0268990A2 New benzothiadiazine compounds, processes for the preparation thereof and pharmaceutical composition comprising the same
06/01/1988CN87107990A Benzothiadiazine compounds, processes for preparing thereof and pharmaceutical composition comprising same
05/1988
05/24/1988US4746736 Carbapenem antibiotics
05/24/1988US4746353 Herbicidal sulfonamides
05/19/1988WO1987007599A3 Anti-inflammatory compositions
05/18/1988EP0267491A2 Silver halide light-sensitive photographic material containing a novel yellow coupler
05/11/1988CN87103683A Malonic acid derivative applied to hold back plant growth
05/10/1988US4743533 Photographic system utilizing a compound capable of providing controlled release of photographically useful group
05/05/1988WO1987005898A3 Use of malonic acid derivative compounds for retarding plant growth
04/1988
04/26/1988US4740514 Tetrazole substituted compounds and their anti-allergic use
04/20/1988EP0264008A2 Process for the preparation of 5-methyl tetrazole
04/20/1988EP0263861A1 Lysine salt of the gadolinium-dota complex and its applications to diagnosis.
04/19/1988CA1235414A1 7-acylamino-3-vinylcephalosporanic acid derivatives and processes for the preparation thereof
04/12/1988US4737452 Silver halide photographic materials
04/07/1988WO1987006024A3 Photographic system
04/06/1988EP0262318A2 Renin-inhibiting amino acid derivatives
03/1988
03/30/1988EP0262087A1 Substituted thioureas, isothioureas and carbon diimides
03/30/1988CN87105481A Fungicides
03/29/1988US4734357 Silver halide color light sensitive material
03/24/1988WO1987005601A3 Sulfonamides derived from diarylmethanes and their uses as medicaments
03/23/1988EP0260794A2 Substituted phenyl-2-propenoic acid derivatives and their use as fungicides
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