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Class Information
Number: 544/296
Name: Organic compounds -- part of the class 532-570 series > Organic compounds (class 532, subclass 1) > Heterocyclic carbon compounds containing a hetero ring having chalcogen (i.e., oxygen, sulfur, selenium, or tellurium) or nitrogen as the only ring hetero atoms (class 540, subclass 1) > Hetero ring is six-membered having two or more ring hetero atoms of which at least one is nitrogen (e.g., selenazines, etc.) > The six-membered hetero ring consists of two nitrogens and four carbons (e.g., 1,2-diazines, etc.) > 1,3-diazines > Plural diazine rings > Plural 1,3-diazine rings
Description: Compounds which contain at least two of the six-membered hetero rings, each having its nitrogens in the 1- and 3- positions, and carbons in the remaining four positions.










Patents under this class:
1 2 3 4 5 6 7 8 9 10 11 12 13 14

Patent Number Title Of Patent Date Issued
6267913 Two-photon or higher-order absorbing optical materials and methods of use Jul. 31, 2001
6255314 Cancerous metastasis inhibitors containing uracil derivatives Jul. 3, 2001
6251828 Substituted phenyluracils Jun. 26, 2001
6211191 Integrin receptor antagonists Apr. 3, 2001
6211186 Enzyme Inhibitors Apr. 3, 2001
6204273 16-substituted-4-aza-androstane 5-.alpha.-reductase isozyme 1 inhibitors Mar. 20, 2001
6200986 Hemoregulatory compounds Mar. 13, 2001
6194413 Hemoregulatory compounds Feb. 27, 2001
6174901 Substituted pyridine and pyridazine compounds and methods of use Jan. 16, 2001
6172227 4,5-diaminopyrimidine derivatives and a method for the preparation thereof Jan. 9, 2001
6159995 Substituted diaminocarboxylic acids Dec. 12, 2000
6159673 Oxonol compound, light-sensitive material and process for the synthesis of oxonol compound Dec. 12, 2000
6143750 Alpha 1a adrenergic receptor antagonists Nov. 7, 2000
6124306 Thioalkyl alpha substituted pyrimidine compounds Sep. 26, 2000
6114342 2-(O-[pyrimidin-4-yl]methylenoxy)phenylacetic acid derivatives and their use for controlling harmful fungi and animal pests Sep. 5, 2000
6107297 2,4-Dithi(oxo)-pyrimidin-5-yl compounds bearing a tricyclic substituent useful as P2 purinoceptor antagonists Aug. 22, 2000
6103761 Agents acting at cholecystokinin receptors Aug. 15, 2000
6096753 Substituted pyrimidinone and pyridone compounds and methods of use Aug. 1, 2000
6093718 Substituted pyrimidine derivatives and their pharmaceutical use Jul. 25, 2000
6083955 Arylethenesulfonamide derivatives and drug composition containing the same Jul. 4, 2000
6063924 Soluble chromophores containing solubilising groups which can be easily removed May. 16, 2000
6057269 Benzylhydroxylamines and intermediates used to prepare them May. 2, 2000
6034089 Aryl thiophene derivatives as PDE IV inhibitors Mar. 7, 2000
6013777 Process for the preparation of fluorescent pigments Jan. 11, 2000
6008224 Pyrimidine derivatives Dec. 28, 1999
6004965 Sulfonamides Dec. 21, 1999
5981537 Pyrimidine-thioalkyl and alkylether compounds Nov. 9, 1999
5977110 Substituted cyclohexylamines as central nervous systems agents Nov. 2, 1999
5977363 Process for the preparation of unsymmetrical 4,6-bis(aryloxy) pyrimidine compounds Nov. 2, 1999
5965717 Organic pigments from twisted benzidines Oct. 12, 1999
5962479 Corticotropin releasing factor antagonists Oct. 5, 1999
5948551 Use of conjugated compounds containing pyrimidine groups as electroluminescence materials Sep. 7, 1999
5948781 Adamantyl substituted oxindoles as pharmaceutical agents Sep. 7, 1999
5922646 Acylated aminophenylsulfonylureas, processes for their preparation and their use as herbicides and plant growth regulators Jul. 13, 1999
5922645 Alkylidenehydrazinophenylsulfonylureas, processes for their preparation and their use as herbicides and plant growth regulators Jul. 13, 1999
5919945 Process for preparing diketopyrrolopyrrole derivatives Jul. 6, 1999
5914351 Anti-viral aromatic hydrazones Jun. 22, 1999
5889012 Substituted cycloalkylamino and cycloalkoxy heterocycles, processes for preparing them and their use as pesticides Mar. 30, 1999
5886160 Fluorescent pigments Mar. 23, 1999
5872255 Conjugated organic compounds and preparation process Feb. 16, 1999
5866583 Substituted 2,4-diaminopyrimidines Feb. 2, 1999
5866036 High tilt ferroelectric liquid crystal compounds and compositions Feb. 2, 1999
5859009 Substituted spiroalkylamino and alkoxy heterocycles, processes for their preparation, and their use as pesticides and fungicides Jan. 12, 1999
5856484 Sulfonylaminopyrimidine carboxylic acid derivatives having endothelin inhibiting activity Jan. 5, 1999
5854179 Sulfur-substituted phenylsulfonylureas, processes for their preparation and their use as herbicides and plant growth regulators Dec. 29, 1998
5852019 Pyrimidinylpyrazole derivatives Dec. 22, 1998
5849216 Compounds for use in liquid-crystal mixtures Dec. 15, 1998
5849666 N-substituted hydrazinophenylsulfonylureas, processes for their preparation and their use as herbicides and plant growth regulations Dec. 15, 1998
5840896 Method of preventing or limiting reperfusion damage Nov. 24, 1998
5837708 Sulphonamides Nov. 17, 1998

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