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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
5262385 Halogen-containing compounds, herbicidal composition containing the same as an active ingredient, and intermediary compounds therefor Nov. 16, 1993
5262416 Pesticidal substituted 2-[6-(pyrimidinyl)-indol-1-yl]-acrylic esters Nov. 16, 1993
5260293 Pyrazines, pyrimidines and pyridazines useful in the treatment of senile dementia Nov. 9, 1993
5250536 Heterocyclic compounds Oct. 5, 1993
5250685 Process for the preparation of S-alkyl-isothioureidoazines Oct. 5, 1993
5234923 Substitute indole and benzimidazole derivatives Aug. 10, 1993
5231094 Triazolopyrimidines which are angiotensin II receptor antagonists and pharmaceutical compositions in which they are present Jul. 27, 1993
5229391 Pyrimidine derivatives and their use as fungicidal agents Jul. 20, 1993
5223017 Substituted sulfonylalkylsulfonylureas and their use as herbicides and plant growth regulators Jun. 29, 1993
5221316 Fungicides Jun. 22, 1993
5221315 Sulfonylureas Jun. 22, 1993
5213608 Herbicidal substituted sulphonylamidinohydrazones May. 25, 1993
5209770 Herbicidal pyridinesulfonylureas May. 11, 1993
5208337 Process for the preparation of aminopyrimidines May. 4, 1993
5202439 Process for the interconversion of two separate crystal forms of a herbicidal pyridine sulfonamide Apr. 13, 1993
5198547 Process for N5-formylating tetrahydropteridines Mar. 30, 1993
5196533 Cyclization of 5 amino-pyrimidines to quinoid 6,6 disubstituted dihydropteridines Mar. 23, 1993
5190945 Azinyliminodithietanes and their fungicidal and nematocidal methods of use Mar. 2, 1993
5189040 Pyrazole derivatives, method for producing the same and agricultural and/or horticultural fungicides containing the same as active ingredient Feb. 23, 1993
5180826 Process for the production of 1-(n-methanesulfonyl-n-methylaminosulfonyl)-3-(2-pyrimidyl) urea derivatives Jan. 19, 1993
5164496 Tricycle pyrazine dyes Nov. 17, 1992
5162327 Pyrimidinetrione derivatives, agents containing them and their use as agents for combating pests Nov. 10, 1992
5157121 Process for the preparation of N-alkylsulfonylaminosulfonylureas Oct. 20, 1992
5155222 Process for the preparation of N-alkylsulfonylaminosulfonylureas Oct. 13, 1992
5153324 Process for preparing sulfonylureas Oct. 6, 1992
5139565 Substituted pyridinesulfonamide compounds, and herbicidal compositions containing them Aug. 18, 1992
5130317 Pyrimidine-4,6-dicarboxylic acid diamides, processes for the use thereof, and pharmaceuticals based on these compounds Jul. 14, 1992
5129941 Heterocyclically substituted sulfonylureas, and their use as herbicides or plant growth regulators Jul. 14, 1992
5126454 Process for the preparation of sulphonylisoureas Jun. 30, 1992
5126453 Process for the preparation of 6-piperidino-2,4-diamino pyrimidine-3-oxide and novel compounds Jun. 30, 1992
5126352 Polycyclic quinoline, naphthyridine and pyrazinopyridine derivatives Jun. 30, 1992
5126347 Isomeric dideoxynuclesides Jun. 30, 1992
5126349 Composition and use of substituted 3-thio-2-propynenitriles as an industrial antimicrobial Jun. 30, 1992
5120843 Pharmaceutically active amines Jun. 9, 1992
5109004 Pyrimidine Apr. 28, 1992
5102444 Herbicidal pyridinesulfonylureas Apr. 7, 1992
5103007 Lipids Apr. 7, 1992
5101030 9-deazaguanines Mar. 31, 1992
5101031 Preparation of 2,4,5-triamino-6-hydroxypyrimidine by catalytic hydrogenation of 2,4-diamino-6-hydroxy-5-nitroso-pyrimidine Mar. 31, 1992
5092917 Herbicidal aminoguanidinoazines Mar. 3, 1992
5087697 Therapeutic nucleosides Feb. 11, 1992
5086177 Preparation of oxyguanidines Feb. 4, 1992
5084458 Substituted 2-acylpyridine-.beta.-(N)-hetaryl-hydrazones and medicaments containing the same Jan. 28, 1992
5081142 Derivatives of 1-hydroxy-1,2,4-triazole and fungicides and growth regulators containing them Jan. 14, 1992
5081245 Carboxylic acid derivatives Jan. 14, 1992
5079361 Thiol-reactive cross-linking reagents Jan. 7, 1992
5070201 Process for the preparation of aminopyrimidines Dec. 3, 1991
5055471 Fungicides Oct. 8, 1991
5051429 "Pyrimidine derivatives" Sep. 24, 1991
5043454 Crop protection agents based on 1-aryl- or 1-hetarylimidazolecarboxylic esters Aug. 27, 1991

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