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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
4578469 Benzo[de]pyrano[3,2-g]isoquinoline derivatives useful as dyestuffs Mar. 25, 1986
4578459 Heterocyclic alkylaminoheterocycles Mar. 25, 1986
4577018 2,3-Diamino-substituted-4(3H)-pyrimidinones and platinum chelates Mar. 18, 1986
4572908 Dihydropyridines Feb. 25, 1986
4569996 Process for preparing substituted pyrimidinones Feb. 11, 1986
4568744 Benzylpyrimidine synthesis and intermediates Feb. 4, 1986
4565567 Herbicidal heterocyclic alkylaminocarbonylsulfonamides Jan. 21, 1986
4565869 Dicarbamates Jan. 21, 1986
4563211 Herbicidal sulfonamides Jan. 7, 1986
4560508 4-Cyano-2-azetidinones and production thereof Dec. 24, 1985
4559345 Pyrimidine and s-triazine derivatives with antilipidemic activity Dec. 17, 1985
4558128 2-Substituted alkylaminopyrimidones Dec. 10, 1985
4551531 4-Difluoromethoxy-2-amino-pyrimidines Nov. 5, 1985
4549898 N-Heterocyclosulfonyl-N'-pyrimidinylureas and N-heterocyclosulfonyl-N'-triazinylureas Oct. 29, 1985
4549019 Pyrimidinecarbamate derivatives as intermediates Oct. 22, 1985
4548940 Pyridylaminoalkylaminopyrimidones useful as histamine H.sub.1 -antagonists Oct. 22, 1985
4547506 2-Pyridylaminoakylamino-4-pyrimidones useful as histamine H.sub.1 -antagonists Oct. 15, 1985
4546179 Process for preparing sulfonylureas Oct. 8, 1985
4544401 Agricultural pyridinesulfonamides Oct. 1, 1985
4542216 Process for producing fluoroalkoxyaminopyrimidines Sep. 17, 1985
4540699 N-Substituted pyridinones having histamine H.sub.2 -antagonist activity Sep. 10, 1985
4539207 Pyrimidine compounds Sep. 3, 1985
4537891 2-(3,5-Substituted-2-pyridylalkylamino)-5-benzyl-4-pyrimidones Aug. 27, 1985
4537890 2-(3,5-Substituted-2-pyridylalkylamino)-5-oxopyridylmethyl-4-pyrimidones useful as histamine H.sub.1 -antagonists Aug. 27, 1985
4532246 2-(2-Pyridylaminoalkylamino)-4-pyrimidones Jul. 30, 1985
4532242 Substituted triazolo[4,3-c]pyrimidines Jul. 30, 1985
4532252 3,5-Substituted-2-pyridylalkylamino compounds having histamine H.sub.1 -antagonist activity Jul. 30, 1985
4524071 Pyrimidone derivatives Jun. 18, 1985
4523015 Process and nitroaminopyrimidone intermediates for histamine H.sub.2 -antagonists Jun. 11, 1985
4521597 Process for producing sulfonylureas having a herbicidal action Jun. 4, 1985
4521418 Guanidinothiazolyl derivatives Jun. 4, 1985
4518776 Process for producing sulfonylureas May. 21, 1985
4517188 1-Pyrimidinyloxy-3-hetaryl-alkylamino-2-propanols May. 14, 1985
4514211 Benzofuran and benzothiophene sulfonamides Apr. 30, 1985
4507302 Method for treating arthritis with 6-aryl pyrimidine compounds Mar. 26, 1985
4494980 Herbicidal ortho-(azinyl)-benzenesulfonamides Jan. 22, 1985
4486434 Histamine H.sub.1 -antagonists Dec. 4, 1984
4485248 Process for producing 2,4-diamino-(3,5-dimethoxy-4-methoxyethoxy-benzyl)-pyrimidine Nov. 27, 1984
4480101 Fluoroalkoxy-aminopyrimidines Oct. 30, 1984
4477663 Intermediates for preparing substituted pyrimidinones Oct. 16, 1984
4474600 Herbicidally active novel substituted phenylsulfonylurea derivatives Oct. 2, 1984
4473394 Pyrrole sulfonamides Sep. 25, 1984
4468399 2-[2-(2-Aminoalkyl-4-thiazolylmethylthio)alkyl]-amino-5-substituted-4-pyr imidones Aug. 28, 1984
4461640 Herbicidal alkenyl sulfonamides Jul. 24, 1984
4460589 Process for treating hypertension Jul. 17, 1984
4444772 Histamine H.sub.1 -antagonists Apr. 24, 1984
4441910 Thiophene or furan herbicides Apr. 10, 1984
4439435 Isoureas and isothioureas Mar. 27, 1984
4436913 1H- and 2H- indazole derivatives Mar. 13, 1984
4435206 Agricultural pyridinesulfonamides Mar. 6, 1984

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