Patents
Patents for C07D 257 - Heterocyclic compounds containing rings having four nitrogen atoms as the only ring hetero atoms (9,612)
09/1989
09/19/1989US4868321 Isothiocyanate intermediates
09/12/1989US4866091 Antinflammatory agents, analgesics
09/06/1989EP0331232A2 5-lipoxygenase inhibiting 4-(4-phenyl-1-piperazinyl)phenols
09/05/1989US4863942 Novel resorcinol ethers and anti-inflammatory and anti-allergic use thereof
08/1989
08/29/1989US4861701 Photographic element and process comprising a compound which comprises two timing groups in sequence
08/23/1989EP0328589A1 Tetra-aza macrocycles and metal complexes thereof
08/15/1989US4857440 Releasing dye upon oxidative development of silver halide emulsion
08/08/1989US4855323 Leukotriene antagonists, a process for the preparation thereof, and the use thereof for the treatment of diseases
08/08/1989US4855297 Tricyclic pyridone derivatives
08/02/1989EP0325762A1 Macrocyclic chelating agents and chelates thereof
08/01/1989US4853398 Antiallergens
07/1989
07/26/1989CN1034203A Phenoxyphenyl-substituted tetrazolinones
07/25/1989US4851440 Leukotriene antagonists, processes for the preparation thereof, the use thereof for the treatment of diseases, and precursors
07/25/1989US4851423 Pharmaceutically active compounds
07/19/1989EP0324221A2 Phenoxyphenyl-substituted tetrazolinones
07/13/1989WO1989004309A3 New derivatives of tetrahydro-1,4,5,6 tetrazine-1,2,4,5 one-3, process for the production and application of the stable radicals which constitute the dehydrogenated form as contrast agents in nuclear magnetic resonance
07/12/1989EP0323885A1 New chemical process
07/12/1989EP0323841A2 Substituted pyrrole, pyrazole and triazole angiotensin II antagonists
07/12/1989CN1033800A Indan derivatives and process for preparation thereof
07/11/1989US4847277 Calcium salt of 10-propyl-2,8-bis(ihtetrazole-5-yl-4h,6h-benzo (1,2-6; 5,4-6'dipyran-4,6-dione
07/11/1989US4847275 Enzyme inhibitor, leukotriene antagonist
07/11/1989US4847185 Photographic material and process (A)
07/05/1989CN1033624A High potency sweetening agents
07/04/1989US4845231 Tetrazoles and their use as hypoglycemic agents
07/04/1989US4845227 Aromatase inhibitors from azoles
07/04/1989US4845110 Antagonist effect on leukotriene receptors
06/1989
06/29/1989WO1989005802A1 Macrocyclic chelating agents and chelates thereof
06/20/1989US4840887 Silver halide photographic materials
06/20/1989CA1256249A1 Diagnostic preparations and their use
06/20/1989CA1256112A1 Imidazolyl, triazolyl, and tetrazolyl compounds
06/20/1989CA1256110A1 Triazole antifungal agents
06/13/1989US4839369 Antiinflammatory agents; antiallergens
06/06/1989US4837334 Precursors to quinolone inotropic agents
06/06/1989US4837331 Stabilization of tetrazolium salts with cyclodextrins
05/1989
05/24/1989EP0317321A2 Indan derivatives and process for preparation thereof
05/24/1989EP0317165A1 DI-t-butylphenols substituted by an alkoxy or benzyloxy group or a benzylthio group
05/24/1989DE3819025A1 Process for the preparation of alkoxybenzene compounds
05/23/1989US4833143 Phenyl cyclobutyl heterocyclic amines and amides
05/18/1989WO1989004309A2 New derivatives of tetrahydro-1,4,5,6 tetrazine-1,2,4,5 one-3, process for the production and application of the stable radicals which constitute the dehydrogenated form as contrast agents in nuclear magnetic resonance
05/17/1989CN1032935A Fluorinated arachidonic acid derivatives
05/16/1989US4831047 Tetrazolyl compounds and insecticidal use thereof
05/16/1989US4830661 Substituted tetrazolinones and herbicidal compositions thereof
05/16/1989CA1254204A1 3-(1h-tetrazol-5-yl)-4(3h)-quinazolinones
05/10/1989EP0315166A2 Fluorinated arachidonic acid derivatives
05/10/1989CN1032786A L-acylamino acid derivatives and their use
05/09/1989US4829074 Azolyl substituted aralkyl compounds and pesticidal use thereof
05/09/1989US4829053 Renin inhibitors
05/03/1989EP0313697A1 Leukotriene antagonists
05/02/1989US4826529 Plant growth regulators
04/1989
04/25/1989US4824959 Intermediates for antihypercholesterolemic tetrazole compounds
04/19/1989EP0312189A1 10-Propyl-2,8-bis(1H-tetrazol-5-yl)-4H,6H-benzo(1,2-b;5,4-b')dipyran-4,6-dione calcium salt
04/18/1989US4822788 Microbiocides, beta-lactamase inhibitors
04/12/1989EP0311517A2 Amide compound having glutamate receptor inhibiting activity
04/12/1989EP0310622A1 Anti-inflammatory compositions.
04/11/1989US4820867 Antiallergens
04/11/1989US4820843 Tetrazole intermediates to antihypertensive compounds
04/11/1989US4820726 Oxaloamino substituted fluorinated resorcinol ethers and anti-allergic and anti-inflammatory use thereof
04/11/1989US4820723 Disubstituted tetrazole leukotriene antagonists and methods for their use thereas
04/11/1989US4820722 Disubstituted tetrazoles and their use as leukotriene antagonists
04/11/1989US4820719 Leukotriene antagonists
04/05/1989EP0309873A1 Stabilisation of a photographic picture produced with silver
04/05/1989EP0309766A2 N-acylamino acid derivatives and their use
04/04/1989CA1252094A1 Process for the preparation of 4(3h) - quinazolinones
03/1989
03/21/1989US4814261 Silver halide photographic material containing a development restrainer or a precursor thereof
03/21/1989CA1251443A1 Process for preparing 1-dethia 2-thia cephalosporanic acid derivatives
03/07/1989US4810811 Chemical intermediates
03/01/1989EP0305320A2 Multinucleic substituted complexants, complexes and complex salts, process for their preparation and pharmaceutical agents containing them
03/01/1989EP0305085A1 Leukotriene antagonists
03/01/1989EP0304780A1 Process for labelling substances with technetium or rhenium
02/1989
02/28/1989US4808604 Leukotriene antagonists; bronchodilators; anticoagulants; antiinflaminetory agents
02/23/1989WO1989001476A1 Tetra-aza macrocycles and metal complexes thereof
02/22/1989CN1031227A Acrylate fungicides
02/22/1989CN1031224A Improvements in or relating to leukotriene antagonists
02/22/1989CN1031223A Improvements in or relating to leukotriene antagonists
02/21/1989US4806558 Diarylacetylenes and their use in treating acne
02/15/1989EP0303478A1 Improvements in or relating to leukotriene antagonists
02/14/1989US4804673 Fungicidal sulfonyl azoles
02/14/1989US4804670 Substituted hexatriene derivatives and their use in treating acne and psoriasis
02/01/1989EP0302014A1 Phenyl thioureas, isothioureas and carbon diimides, their preparation and their use as pesticides
02/01/1989EP0301402A1 Leukotriene antagonists, process for their preparation and their use in the treatment of illnesses
02/01/1989EP0301401A2 Leukotriene antagonists, process for their preparation, their use in the treatment of illnesses
01/1989
01/31/1989US4801733 Skin disorders
01/31/1989US4801616 Antiarthrytic
01/31/1989US4801594 Aromatase inhibitors
01/26/1989WO1989000563A1 High potency sweetening agents
01/26/1989WO1989000557A1 Aminopolycarboxylic acids and derivatives thereof
01/25/1989CN1030588A Functionalized polyamine chelants and rhodium complexes thereof and process for their preparation
01/25/1989CN1030575A Oxo-1,2-dihydroindene and tetrahydronaphthalene herbicide
01/18/1989EP0299795A2 Aminopolycarboxylic acids and derivatives thereof
01/18/1989EP0299726A2 Benzoyl-acetanilide couplers and photographic materials and processes containing them
01/18/1989EP0299725A2 Photographic material containing a novel DIR-compound
01/18/1989EP0299694A2 Acrylate fungicides
01/18/1989EP0299594A1 Pharmaceutical use of aromatic thioethers
01/18/1989EP0299533A2 High potency sweetening agents
01/17/1989CA1248943A1 Fluorophenoxyphenoxypropionates and derivatives thereof
01/11/1989EP0298583A1 Aromatic thioethers
01/10/1989CA1248536A1 Benzoil acid derivatives
01/04/1989CN1030074A Leukotriene antagonists
01/03/1989US4795755 Antisecretory, antiulcer agents
01/03/1989US4795754 Antiallergens
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