Patents
Patents for C07D 213 - Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members (63,273)
02/1991
02/19/1991US4994259 Nuclear magnetic imaging contrast agents; stability
02/19/1991US4994087 Compounds containing substituted phenylamino and pyridyl groups and hair dyeing preparations using them
02/19/1991CA2023464A1 Butyric acid derivatives
02/19/1991CA1280443C Polyfluoroalkylthiomethyl compounds, process for their preparation and their application as surfactants or precursors thereof
02/19/1991CA1280417C Fungicidal acrylates and preparation thereof
02/19/1991CA1280414C Isoprenoidamine derivatives and antiulcer agents
02/13/1991EP0412899A2 Oxazolo pyridine derivatives, process for their preparation and pharmaceutical compositions containing them
02/13/1991EP0412892A1 Pyranon, process for its preparation, its application for the preparation of a pyridon and preparation process for the latter
02/12/1991US4992503 Fungicidal pyridyl amides
02/12/1991US4992471 Molluscicides
02/12/1991US4992453 Certain thioimidate and amidine insecticides
02/12/1991US4992452 Certain 5-acyl-2-(1H)-pyridinones useful in treating cardiac failure
02/12/1991US4992360 Silver halide light-sensitive photographic material containing a novel yellow coupler
02/08/1991CA2022732A1 Oxazolo pyridine derivatives, process for their preparation and pharmaceutical compositions containing the same
02/07/1991WO1991001299A1 Antiarrhythmic tertiary amine-alkenyl-phenyl-alkanesulfonamides
02/07/1991WO1991001298A1 Process for the preparation of aromatic nitriles
02/07/1991WO1991001294A1 Process for producing tertiary amine-sulphur-trioxide complexes
02/07/1991WO1991001289A1 Substituted cyclohexanedione derivative
02/06/1991EP0412014A1 Benzothiazine derivatives, their preparation and their uses as medicines or as intermediates for the synthesis of medicines
02/06/1991EP0411935A2 Copper radio sensitizers
02/06/1991EP0411420A2 Imino substituted pyridine
02/06/1991EP0411409A1 Tert.-butylesters of substituted 3-hydroxyproponoic acid
02/06/1991EP0411364A1 Process for the preparation of chlorinated nicotine-aldehydes
02/05/1991US4990703 Novel tetrahydronaphthalene and indane derivatives
02/05/1991US4990664 Ethanolamine derivatives
02/05/1991US4990651 Process for producing carboxylic acid esters
02/05/1991US4990622 Process for the preparation of 2-chloro-5-chloromethylpyridine
02/05/1991US4990621 Insecticides, miticides and nematocides; 3-(3-fluoro-4-phenoxyphenyl, 3-(5-fluoro-3-phenoxypyrid-2-yl) or 3-(3-methyl-4-phenyl prop-1-ene
02/05/1991US4990620 Halogen substituted pyridylalkyl ketones
02/05/1991US4990522 Esterified ephedrine derivatives with prolonged antiulcer activity
02/05/1991US4990512 Insecticides
02/05/1991US4990507 N-containing heterocyclic compounds, and composition comprising the same
02/05/1991US4990232 Process for the preparation of carbodiimides
02/05/1991CA2022460A1 Benzothiazimig derivatives, their preparation and applications as medicaments or as intermediates in the systhesis of medicaments
02/05/1991CA1279870C Aroyl substituted dihydro-1,4-thiazines
02/04/1991CA2022423A1 Hmg-coa reductase-inhibiting imino-substituted pyridines
02/02/1991CA2022311A1 Copper radiosensitizers
01/1991
01/31/1991DE3924683A1 Prepn. of 2,3-di:chloro-5-chloro:methyl-pyridine - used as intermediates in prodn. of pharmaceuticals, comprises reacting 2-alkoxy-3-chloro-5-hydroxy-methyl derivs. with chlorinating agent
01/30/1991EP0410758A2 Process for producing optically active propionic acid derivatives
01/30/1991EP0410380A2 Novel process for the synthesis of 2-fluoro-1-olefins
01/30/1991EP0410260A2 Peptidyl aminodiol renin inhibitors
01/30/1991EP0410244A1 Leukotriene antagonists
01/30/1991EP0410233A2 (4-Arylbutyl) cyclohexane derivatives
01/30/1991EP0410142A2 Optically active liquid crystal compounds
01/30/1991EP0363404A4 Process for the production of 2,3,5,6-tetrachloropyridine and 2,3,6-trichloropyridine
01/30/1991CN1048848A Substituted bycycloheptandione derivatives
01/30/1991CN1048847A Process for preparing aromatic nitriles
01/30/1991CN1048845A Certain glyoxyl-cyclohexendiones
01/29/1991US4988826 Process for intermediates for insecticidal compounds
01/29/1991US4988817 Process for preparation of quaternary ammonium and phosphonium substituted carbonic acid esters
01/29/1991US4988714 Pyridine-ethanolamine derivatives
01/29/1991US4988712 Insecticidal azolylmethyl-1,2-dihydropyridines
01/29/1991US4988708 3-Carbamoyl-4-hydroxy-2-carboxylmethyl quinoline analgesics, antiinflammatory agents
01/29/1991US4988694 Promoters for animal growth regulators for animal feeds
01/29/1991US4988385 Plant growth regulators, antigrowth agents for plants
01/29/1991US4988384 Penta-substituted pyridine compounds, herbicidal compositions and herbicidal method of use
01/29/1991CA1279646C 3,4-dihydrobenzopyran compounds and pharmaceutical composition containing the same
01/29/1991CA1279604C Electrochemical oxidation of pyridine bases
01/28/1991CA2021996A1 Leukotriene antagonists
01/27/1991CA2021740A1 Peptidyl aminodiol renin inhibitors
01/26/1991CA2021521A1 Process for the synthesis of 2-fluoro-1-olefins
01/24/1991WO1991000897A1 Chiral or achiral ring compounds
01/24/1991WO1991000858A1 Pharmaceutically active compounds
01/24/1991WO1991000852A1 Method of producing tertiary amine-sulphur trioxide complexes
01/24/1991DE4006743A1 Chirale oder achirale ringverbindungen Chiral or achiral ring compounds
01/24/1991DE3923979A1 Verfahren zur herstellung von aromatischen nitrilen A process for preparing aromatic nitriles
01/23/1991EP0409689A2 A process for the purification of 1,1-bis(4-chlorophenyl)-2,2,2-trichloroethanol
01/23/1991EP0409634A2 Liquid crystal compounds and optically active compounds
01/23/1991EP0409414A1 Diaryl ether cycloalkanes
01/23/1991EP0409406A2 Aryl-substituted amine derivatives useful in cancer therapy
01/23/1991EP0409350A2 Certain glyoxyl-cyclohexendiones
01/23/1991EP0409234A2 Alpha-hydroxyketone derivatives, liquid crystal compositions containing said derivatives, and liquid crystal devices using said compositions
01/23/1991EP0409119A1 N,N'-Bis(alkoxy-alkyl)-pyridine-2,4-dicarboxylic acid amides, process for their preparation as well as their use
01/23/1991EP0409077A1 1-Aza-butadienes and fungicides containing them
01/22/1991US4987232 One pot, good yield
01/22/1991US4987147 Low toxicity
01/22/1991US4987141 Insecticidal compounds and compositions
01/22/1991US4987140 Antiinflammatory, antirheumatic
01/22/1991US4987135 Leukemia, melanoma
01/22/1991US4987130 Substituted amine derivatives, their production and use
01/22/1991CA2021525A1 Compounds
01/22/1991CA2021499A1 Certain glyoxyl-cyclohexendiones
01/22/1991CA1279331C Reductive dehalogenation of halogen compounds
01/22/1991CA1279322C2 Process for preparing 4,4-dialkyl-2-azetidinones
01/22/1991CA1279321C Alkali metal bis-phenethyl or tris-phenethyl-pyridines
01/22/1991CA1279317C Piperidine derivative and pharmaceutical composition
01/18/1991CA2019344A1 Diaryl ether cycloalkanes
01/17/1991DE4020964A1 Prodn. of di:methylamino-substd. aryl-alkane(s) esp. ranitidine - comprises reacting hydroxy-substd. aryl-alkane with di:methylamine and a tetra:methyl:formamidinium salt
01/17/1991DE3922416A1 New optically active cpds. with fluoro-substd. asymmetrical carbon
01/17/1991DE3922308A1 New optically active cpds. with fluoro-substd. asymmetrical carbon
01/17/1991DE3922307A1 New optically active cpds. with fluoro-substd. asymmetrical carbon
01/16/1991EP0408203A2 Heterocyclic thione
01/15/1991US4985555 Cephem compounds
01/15/1991US4985449 N-benzoyl-N-pyridyloxy phenyl urea compounds and pesticide compositions containing them
01/15/1991US4985447 Certain benzoquinones, naphthoquinones and derivatives thereof which exhibit thromboxane A2 synthetase inhibition or receptor antagonism and the like
01/15/1991US4985442 2-substituted-1-naphthols as 5-lipoxygenase inhibitors
01/15/1991US4985438 Pyridyl-and/or pyridoyl-(piperid-4-yl) ureas and analogues thereof
01/15/1991US4985435 2-substituted-1-naphthols as 5-lipoxygenase inhibitors
01/15/1991CA1279015C Increasing aqueous humor outflow
01/13/1991CA2020846A1 Heterocyclic thione