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Class Information
Number: 544/320
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 > Chalcogen bonded directly to diazine ring carbon > At 4- or 6-position > Nitrogen attached directly at 2-position by nonionic bonding
Description: Compounds wherein nitrogen is attached directly to the 2-position of the six-membered hetero ring by nonionic bonding.










Sub-classes under this class:

Class Number Class Name Patents
544/321 Carbocyclic ring containing 775


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

Patent Number Title Of Patent Date Issued
6207839 Process for preparing compositions useful as intermediates for preparing lubricating oil and fuel additives Mar. 27, 2001
6207670 Antiproliferative substituted 5-thiapyrimidinone and 5-selenopyrimidinone compounds Mar. 27, 2001
6197779 HIV inhibiting pyrimidine derivative Mar. 6, 2001
6174901 Substituted pyridine and pyridazine compounds and methods of use Jan. 16, 2001
6172005 Heteroaryl azole herbicides Jan. 9, 2001
6166041 2-heteroaryl and 2-heterocyclic benzoxazoles as PDE IV inhibitors for the treatment of asthma Dec. 26, 2000
6162925 Antibiotic for methicillin resistant bacteria Dec. 19, 2000
6130231 Integrin receptor antagonists Oct. 10, 2000
6110925 Antibiotic for methicillin resistant bacteria Aug. 29, 2000
6111102 Processes for preparing sulfonylureas Aug. 29, 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
6090815 Pyrimidinyloxyalkanoic amide derivatives and fungicides for agricultural and horticultural use Jul. 18, 2000
6087500 Methods for producing pyrimidine compounds Jul. 11, 2000
6080750 Pyrimidine compound and anti-rotavirus composition Jun. 27, 2000
6040315 Antacid co-polymer of guanidine and polyethylenimine Mar. 21, 2000
6030976 Use of sulfonamides Feb. 29, 2000
6028073 N-substituted 3-azabicyclo (3.2.0)heptane derivatives useful as neuroleptics Feb. 22, 2000
6008351 Aromatic hetherocyclic derivatives as enzyme inhibitors Dec. 28, 1999
6001844 4-Azasteroids for treatment of hyperandrogenic conditions Dec. 14, 1999
5977367 N-aminoalkyldibenzofurancarboxamides; new dopamine receptor subtype specific ligands Nov. 2, 1999
5962479 Corticotropin releasing factor antagonists Oct. 5, 1999
5945427 Antiproliferative substituted 5-thiapyrimidinone and 5-selenopyrimidinone compounds Aug. 31, 1999
5936085 Process for the preparation of herbicidal sulfonylureas and of N-(pyrimidinyl or triazinyl)-carbamates as intermediate products Aug. 10, 1999
5935973 Heterocyclcarboxamide derivatives and their use as therapeutic agents Aug. 10, 1999
5925596 Substituted aminomethylphenylsulfonylureas their preparation and their use as herbicides and plant growth regulators Jul. 20, 1999
5912252 Purine and guanine derivatives as PNP inhibitors Jun. 15, 1999
5908844 N-substituted azabicycloalkane derivatives, their preparation and use Jun. 1, 1999
5886176 Process for preparing sulphonylurea salts Mar. 23, 1999
5869428 Pyridonesulfonylurea compounds, process for their production and herbicides containing them Feb. 9, 1999
5863924 Aryl pyrimidine derivatives Jan. 26, 1999
5807863 2-(4-pyrazolyloxy-pyrimidin-5-yl) acetic acid derivatives Sep. 15, 1998
5776858 1-azinyl-tetrazolinones Jul. 7, 1998
5739141 Antiproliferative substituted 5-thiapyrimidinone and 5-selenopyrimidinone compounds Apr. 14, 1998
5726127 Thiophenesulfonylurea derivatives and herbicidal composition containing the same Mar. 10, 1998
5726312 Methods for preparing antiproliferative 5-substituted pyrimidone compounds Mar. 10, 1998
5723470 Fluoroalkenyl compounds and their use as pest control agents Mar. 3, 1998
5723473 Propenoic acid derivatives useful as fungicides Mar. 3, 1998
5714436 N-heteroaryl-N'-(pyrid-2-ylsulfonyl)ureas, processes for their preparation, and their use as herbicides and plant growth regulators Feb. 3, 1998
5684011 Pyrimidine derivatives useful as nematicides Nov. 4, 1997
5681957 Process for the preparation of substituted 2-fluoro-pyrimidines Oct. 28, 1997
5674868 Dimethylbenzofuran and dimethylbenzopyran derivatives and their use as 5-HT3 antagonists Oct. 7, 1997
5663118 Fluoromethylsulfonyl-substituted pyridylsulfonylureas as herbicides, process for their preparation, and their use Sep. 2, 1997
5661148 Pyrrolo[2,3-d]pyrimidine derivatives, process for producing the same and pharmaceutical preparation comprising the same as active ingredient Aug. 26, 1997
5648490 Process for the preparation of 5-formylaminopyrimidines Jul. 15, 1997
5635508 Pyrimidinyl acrylic acid derivatives Jun. 3, 1997
5635451 Pyridylsulfonylureas as herbicides and plant growth regulators, processes for their preparation and their use Jun. 3, 1997
5612287 N-(substituted amino) pyrrole derivatives preparation process thereof, and herbicidal compositions Mar. 18, 1997
5610121 Heterocyclically disubstituted sulphonylamino(thio)carbonyl compounds Mar. 11, 1997
5610302 Composition intended for use for retarding hair loss and for inducing and stimulating its growth, containing 2-aminopyrimidine 3-oxide derivatives, and new compounds derived from 2-aminopyrimi Mar. 11, 1997

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