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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
4780537 Pyrimidine derivatives and process preparing the same Oct. 25, 1988
4772704 2,5-disubstituted-4(3H)-pyrimidones having histamine H.sub.2 -receptor antagonist activity Sep. 20, 1988
4770689 Herbicidal imidazole-5-carboxylic acid derivatives Sep. 13, 1988
4769060 Herbicidal sulfonamides Sep. 6, 1988
4762932 Haloguanidine intermediates Aug. 9, 1988
4762848 1,3-thiazoles and their use as immunomodulators Aug. 9, 1988
4762550 Herbicidal pyrazolesulfonamides Aug. 9, 1988
4756742 Herbicidal ortho-heterocyclic thiophenesulfonamides Jul. 12, 1988
4749790 Process for preparing H.sub.2 receptor antagonist ascorbate compounds Jun. 7, 1988
4747866 Pyrimidinyloxyalkanamide derivatives and herbicide composition containing the same May. 31, 1988
4747870 Herbicidal pyrazole sulfonamides May. 31, 1988
4746353 Herbicidal sulfonamides May. 24, 1988
4744814 N-[(4,6-dimetho xypyrimidin-2-yl)aminocarbonyl]-3-trifluoromethylpyridine-2-sulfonamide or salts thereof, herbicidal composition containing the same May. 17, 1988
4743290 Thiophenesulfonamide herbicides May. 10, 1988
4743294 N'-(substituted-1,3,5- triazin-2-yl)-N"-amino-N"'-(substituted-benzenesulphonyl)-guanidines as herbicides May. 10, 1988
4743292 Herbicidal sulfonamides May. 10, 1988
4741758 Herbicidal sulfonamides May. 3, 1988
4740229 Cyanoheterocyclic sulfonylureas Apr. 26, 1988
4737184 Herbicidal sulfonamides Apr. 12, 1988
4734125 5-acylamido-1-aryl-pyrazoles, composition containing them and herbicidal method of using them Mar. 29, 1988
4732604 Herbicidal sulfonamides Mar. 22, 1988
4730044 Sparsomycin derivatives Mar. 8, 1988
4729995 Pyrimidine 2,4-dioxamate compounds and pharmaceutical compositions Mar. 8, 1988
4727076 Tetrahydroquinolinylalkyl amino pyridones and ring homologues thereof, useful as histamine-H.sub.1 -receptor antagonists Feb. 23, 1988
4725679 Process for producing 2-amino-alkenylsulfonylurea derivatives Feb. 16, 1988
4725303 N'-(substituted-pyrimidin-2-yl) -N"-amino-N"'-(substituted-benzenesulphonyl)-guanidines as herbicides Feb. 16, 1988
4725600 Pyrimidine compounds having activity as a cardiotonic anti-hypertensive cerebrovascular vasodilator and anti-platelet aggregation agent Feb. 16, 1988
4723987 Herbicidal sulfonamides Feb. 9, 1988
4723006 Process for 4,6-di-substituted 2-aminopyrimidines Feb. 2, 1988
4721785 Intermediate 2-cyanoamino-pyrimidine and triazine derivatives Jan. 26, 1988
4721521 Herbicidal sulfonamides Jan. 26, 1988
4715885 Herbicidal pyrazole sulfonylureas Dec. 29, 1987
4715886 Herbicidal pyrazole sulfonamides Dec. 29, 1987
4711959 2-cyanoamino-pyrimidines Dec. 8, 1987
4710498 Pyridyloxy derivatives Dec. 1, 1987
4709018 Fibre-reactive dyes containing halopyrimidine radicals to which a vinylsulfonyl or the like group is attached by means of a bridge member Nov. 24, 1987
4705558 Herbicidal pyrazolesulfonamides Nov. 10, 1987
4699648 Benzenesulfonamides as herbicides Oct. 13, 1987
4699647 Herbicidal sulfonamides Oct. 13, 1987
4695567 Pyrrolobenzimidazoles, pharmaceutical compositions containing them and method of using them to treat certain heart and circulatory diseases Sep. 22, 1987
4693744 Herbicidal ortho-(azinyl)-benzenesulfonamides Sep. 15, 1987
4694008 Chemical compounds Sep. 15, 1987
4693743 Herbicidal sulfonamides Sep. 15, 1987
4690705 Herbicidal sulfonamides Sep. 1, 1987
4689069 Herbicidal acetylenic pyrimidines and triazines Aug. 25, 1987
4689070 Herbicidal N-hydroxy-N'-sulfonylguanidines Aug. 25, 1987
4685961 Herbicidal sulfonylureas Aug. 11, 1987
4685955 Herbicidal sulfonamides Aug. 11, 1987
4684395 Agriculture sulfonamides Aug. 4, 1987
4684393 Herbicidal thiophenesulfonamides Aug. 4, 1987

1 2 3 4 5 6 7 8 9 10 11 12 13










 
 
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