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)
02/1992
02/26/1992EP0472224A1 Fungicides
02/25/1992CA1296341C Substituted di-t-butylphenols
02/25/1992CA1296338C Diphenyl-methane derivative and pharmaceutical use
02/19/1992CN1015543B Fungicides
02/18/1992US5089651 Process for producing 3-iminonitriles
02/18/1992CA2049475A1 Substituted 3-thioacryloyl coumpounds and their use as antimicrobial agents
02/18/1992CA1296003C Sulfonamides derived from diarylmethanes and a process for their preparation, and pharmaceutical compositions containing the same
02/12/1992EP0470795A1 Process for the manufacture of nitriles
02/11/1992US5087743 Treatment of skin disorders
02/11/1992US5087696 Conjugate compound
02/10/1992CA2047369A1 Manufacturing process
02/05/1992CN1058404A Derivatives of benzimidazole, their preparation, and their use as medicaments
02/04/1992US5086177 Chemical intermediate for herbicides
02/04/1992US5086174 Preparation of sulphonylisothioureas
02/04/1992US5086067 Inhibits phospholipase activity which reduces leucotriene production
02/04/1992CA1295336C2 Synthetic intermediates for preparing substituted di-t-butylphenols
02/02/1992WO1992002519A1 Process and intermediate for the preparation of 2-hydroxy-3-sulfido-3-phenyl propanoic acids
02/02/1992CA2088355A1 Process and intermediate for the preparation of 2-hydroxy-3-sulfido-3-phenyl propanoic acids
01/1992
01/30/1992DE4024345A1 Cyclopentenderivate, verfahren zu ihrer herstellung und ihre pharmazeutische verwendung Cyclopentene derivatives, processes for their preparation and their pharmaceutical use
01/29/1992EP0468884A1 Benzimidazole derivatives, their preparation and their application as medicaments
01/28/1992WO1992002494A1 Cyclopentane derivatives, process for producing them and their pharmaceutical use
01/28/1992CA2088159A1 Cyclopentane derivatives, process for producing them and their pharmaceutical use
01/27/1992CA2047880A1 Benzimidazole derivatives, their preparation and pharmacological applications
01/22/1992EP0467177A1 Vinylaromatic compounds substituted with carbonylamino-N-alkanoic acid groups and their use
01/21/1992CA1294620C Substituted tetrazolinones
01/15/1992EP0466200A1 Aminocarboxylic acids and derivatives thereof
01/08/1992EP0464511A2 Process for the preparation of acyclic, substituted nucleosides and its intermediates
01/08/1992CN1057652A Process for preparing substituted acyclic nucleosides and intermediates occurring therein
01/04/1992WO1992000967A1 Bisheterocyclic compound
01/04/1992CA2086606A1 Bisheterocyclic compound
01/02/1992EP0463638A1 Aminophenyl derivatives
12/1991
12/31/1991US5077412 Substituted thioureas, isothioureas and carbodiimides
12/31/1991US5077305 Anticoagulants
12/28/1991CA2045730A1 Process for the preparation of substituted acyclic nucleosides, and intermediates occurring therein
12/25/1991CN1057260A Anti-viral compounds
12/23/1991WO1992000285A1 Tetrazole derivative and medicine
12/23/1991CA2086117A1 Tetrazole derivatives and drugs
12/17/1991US5073574 Tetrazolyl substituted benzonitriles and anti-tumor use thereof
12/17/1991US5073566 Angiotensin ii antagonist 1,3-imidazoles and use thereas
12/17/1991US5073565 Tetrazole ureas and thioureas and their use as acat inhibitors
12/07/1991WO1991018889A1 Leukotriene antagonists
12/07/1991CA2083610A1 Leukotriene antagonists
12/03/1991US5070206 Tetrazol-1-yl containing intermediates
12/03/1991US5070099 Thromboxane antagonists
12/02/1991WO1991018866A2 1,4-diamino-2,3-dihydroxybutanes
12/02/1991CA2084087A1 1,4-diamino 2,3-dihydroxy butanes
11/1991
11/27/1991CN1014889B Process for preparation of diphenylethylene
11/26/1991US5068346 Tetrazole compounds
11/26/1991US5068239 Tetrazoleacetic acid derivatives and use for aldose reductase inhibitory activity
11/22/1991WO1991017987A1 Phenol and pyridinol derivatives as pharmaceuticals
11/22/1991CA2081982A1 Phenol and pyridinol derivatives as pharmaceuticals
11/21/1991EP0457716A1 Naphthalin derivatives
11/21/1991EP0457438A2 Conjugate compounds containing aza-macrocycles, and processes for their preparation
11/19/1991US5066822 Antiallergens
11/19/1991US5066667 Thioxotetrazolines and insecticidal use thereof
11/19/1991CA1292234C Heterocyclic-substituted quinolone inotropic agents
11/14/1991WO1991017150A1 Tetrazole urea and thiourea acat inhibitors
11/12/1991US5064956 Process for preparing mono-n-alkylated polyazamacrocycles
11/12/1991US5064848 Benzophenone oxime ether compounds, pharmaceutical compositions and treatment methods
11/06/1991EP0455423A2 Ortho-lithiation process for the synthesis of 2-substituted 1-(tetrazol-5-yl) benzenes
11/06/1991EP0455380A2 Tetra-aza macrocycles; processes for their preparation, and their use in magnetic resonance imaging
11/06/1991EP0455271A2 Anti-inflammatory compositions
11/02/1991WO1991017149A1 3-naphthyl-3-carboxyalkylthio or oxy substituted alkanoic acid leukotriene antagonists
11/02/1991WO1991016889A1 Five-membered ring alkanoic acid leukotriene antagonists
11/02/1991CA2081480A1 3-naphthyl-3-carboxyalkylthio or oxy substituted alkanoic acid leukotriene antagonists
11/02/1991CA2081462A1 Five-membered ring alkanoic acid leukotriene antagonists
10/1991
10/30/1991EP0454078A2 Dual functioning excipient for metal chelate contrast agents
10/30/1991CN1055735A Trifluoromethyl mercaptan and mercaptoacyl derivatives and method of using same
10/25/1991WO1991016320A1 Derivatives and analogues of 2-deoxy-2,3-didehydro-n-acetyl neuraminic acid and their use as antiviral agents
10/22/1991US5059412 Macrocyclic aminophosphonic acid complexes for the treatment of calcific tumors
10/21/1991CA2040773A1 Naphthalene derivatives
10/19/1991WO1991016081A1 Tetra-aza macrocycles, processes for their preparation and their use in magnetic resonance imaging
10/19/1991WO1991016078A1 Conjugate compounds containing aza-macrocycles, and processes for their preparation
10/19/1991CA2058985A1 Conjugate compounds containing aza-macrocycles, and processes for their preparation
10/19/1991CA2057868A1 Tetra-aza macrocycles processes for their preparation and their use in magnetic resonance imaging
10/09/1991EP0450198A1 Developer liquid for high contrast development
10/08/1991US5055481 Tetrazole derivatives and aldose reductase inhibition therewith
10/02/1991EP0449523A1 Mercapto- or acylthio-trifluoromethyl amide derivatives and their use
10/02/1991EP0448726A1 2-substituted 2-cyclopentenone and carcinostatic agent and osteogenesis promoter containing the same as active ingredient
10/02/1991DE4010355A1 Bicyclo(3.3.0)octan-derivate, verfahren zu ihrer herstellung und ihre pharmazeutische verwendung Bicyclo (3.3.0) octane derivatives, process for their production and their pharmaceutical use
10/01/1991US5053072 Heterocyclic n-acylsulfonamides, and their use as herbicides or growth regulators
09/1991
09/29/1991WO1991014675A1 Bicyclo[3.3.)]octane derivatives, process for producing them and their pharmaceutical use
09/29/1991CA2058922A1 Bicyclo{3.3.0}octane derivatives, process for their production and their pharmaceutical use
09/27/1991WO1991014458A1 A fonctionalized complexand
09/27/1991CA2079206A1 Fonctionalized complexand
09/25/1991EP0448191A1 1,4,7,10-Tetraazacyclododecane-butyltriols, process for their preparation, and pharmaceutical agents containing these compounds
09/25/1991EP0447921A2 Silver halide colour photographic material
09/25/1991EP0447920A1 Silver halide color photographic material
09/25/1991EP0447645A1 Aralkylesulfonyl ureas
09/19/1991WO1991013868A1 Phenylthioalkylcarboxylic acid derivatives, method for preparing them and drugs containing these compounds
09/17/1991US5049667 Nitrogen-containing cyclic ligands
09/17/1991US5049572 Leukotriene biosynthesis inhibitors
09/11/1991EP0446062A1 C-Linked pyrazole derivatives
09/10/1991US5047527 Process for the preparation of monofunctionalized cyclic tetramines
09/10/1991US5047416 Triazole compounds and their use as transglutaminase inhibitors
09/10/1991CA2037872A1 C-linked pyrazole derivatives
09/10/1991CA1288775C Pesticidal tetrazine derivatives
09/05/1991DE4006640A1 Phenylthioalkylcarbonsaeure-derivate, verfahren zu ihrer herstellung sowie diese verbindungen enthaltende arzneimittel Phenylthioalkylcarbonsaeure derivatives, process for their production and pharmaceutical compositions containing them
09/04/1991EP0444502A2 Photographic material and process
09/04/1991EP0444501A2 Photographic material and process comprising a compound capable of forming a wash-out dye
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