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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
6872729 Pyrimidinylbenzimidazole and triazinylbenzimidazole derivatives and agricultural/horticultural fungicides Mar. 29, 2005
6864368 N-heterocyclic derivatives as NOS inhibitors Mar. 8, 2005
6858606 Pyrimidine compounds Feb. 22, 2005
6846829 N-heterocyclic derivatives as NOS inhibitors Jan. 25, 2005
6844335 2-amino-3-(alkyl)-pyrimidone derivatives as GSK3..beta..inhibitors Jan. 18, 2005
6838414 Substituted aryl sulphonyl(thio)ureas used as herbicides Jan. 4, 2005
6838463 Pyrimidine compounds and their use Jan. 4, 2005
6806229 Herbicidally active pyridine sulfonyl urea derivatives Oct. 19, 2004
6777420 Heterocyclic antibacterial compounds Aug. 17, 2004
6716981 Process for the preparation of N-(amino-4, 6-dihalo-pyrimidine) formamides Apr. 6, 2004
6716838 Substituted polycyclic aryl and heteroaryl uracils as anticoagulative agents Apr. 6, 2004
6693196 Couplers for use in oxidative hair dyeing Feb. 17, 2004
6683151 Supramolecular compound Jan. 27, 2004
6683086 Ultrashort acting hypnotic barbiturates Jan. 27, 2004
6653316 Substituted polycyclic aryl and heteroaryl pyrimidinones useful for selective inhibition of the coagulation cascade Nov. 25, 2003
6653317 Pyrimidine 3-oxide compounds for inducing/stimulating hair growth and/or retarding hair loss Nov. 25, 2003
6632821 Fungicidal 5-phenyl substituted 2-(cyanoamino) pyrimidines Oct. 14, 2003
6617332 Tan-1057 derivatives Sep. 9, 2003
6610698 Substituted pyrimidine compounds and methods of use Aug. 26, 2003
6600044 Process for recovery of the desired cis-1,3-oxathiolane nucleosides from their undesired trans-isomers Jul. 29, 2003
6596719 6 alkoxy-4-pyrimidinyl bis-sulfonamides Jul. 22, 2003
6586441 Adenosine receptor ligands and their use in the treatment of disease Jul. 1, 2003
6548512 Nitrogen containing heteroaromatics as factor Xa inhibitors Apr. 15, 2003
6544997 4-(aminomethyl)-piperidine benzamides for treating gastrointestinal disorders Apr. 8, 2003
6518425 Method of manufacture of 1,3-oxathiolane nucleosides Feb. 11, 2003
6495555 Tricyclic .DELTA.-3-piperidines as .alpha.2-antagonists Dec. 17, 2002
6489333 Integrin antagonists Dec. 3, 2002
6451738 Substituted thienyl(Amino)-sulphonyl(thio)ureas as herbicides Sep. 17, 2002
6440986 HIV Inhibiting pyrimidine derivatives Aug. 27, 2002
6432963 Pyrimidine-5-carboxamide derivatives Aug. 13, 2002
6432947 N-heterocyclic derivatives as NOS inhibitors Aug. 13, 2002
6423720 Pyrimidine compounds and methods for making and using the same Jul. 23, 2002
6410482 (Het) arylsulfonylureas having an amino function, their presentation and their use as herbicides and plant growth regulators Jun. 25, 2002
6410729 Substituted pyrimidine compounds and methods of use Jun. 25, 2002
6410730 Process for preparation of sulfonylurea salts Jun. 25, 2002
6387914 Ultrashort acting hypnotic barbiturates May. 14, 2002
6365739 Process for the preparation of 4,6-disubstituted 2-isocyanatopyrimidines and their use as intermediates for active compound syntheses Apr. 2, 2002
6352993 Pyrimidine derivatives and processes for the preparation thereof Mar. 5, 2002
6342504 Aromatic heterocyclic derivatives as enzyme inhibitors Jan. 29, 2002
6329383 2-amino-5-pyrimidine acetic acid compounds Dec. 11, 2001
6323210 Antiproliferative substituted 5-thiapyrimidinone and 5-selenopyrimidinone compounds Nov. 27, 2001
6316388 N-heteroaryl-N'-(pyrid-2-yl-sulfonyl) ureas, processes for their preparation, and their use as herbicides and plant growth regulators Nov. 13, 2001
6291468 Pyrimidine 3-oxide compounds for inducing/stimulating hair growth and/or retarding hair loss Sep. 18, 2001
6274580 Aminoguanidine carboxylate lactams for the treatment of non-insulin-dependent diabetes mellitus Aug. 14, 2001
6274734 Process for making pyrimidine derivatives Aug. 14, 2001
6271376 Process for the preparation of N-(amino-4,6-dihalo-pyrimidine) formamides Aug. 7, 2001
6248770 Benzimidazoles having antithrombotic activity Jun. 19, 2001
6245773 5-(heterocyclic alkyl)-6-aryl-dihydropyrimidines Jun. 12, 2001
6235904 2-amino (fluoroalkoxy) pyrimidines and the preparation thereof May. 22, 2001
6222037 Process for preparation of sulfonylurea salts Apr. 24, 2001

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