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Class Information
Number: 544/242
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
Description: Compounds wherein the six-membered hetero ring has nitrogens in the 1- and 3-positions, and carbons in the remaining four positions.










Sub-classes under this class:

Class Number Class Name Patents
544/243 Phosphorus attached directly or indirectly to the diazine ring by nonionic bonding 456
544/245 Polycyclo ring system having the diazine ring as one of the cyclos 174
544/294 Polycyclo-carbocyclic ring system having at least three cyclos 95
544/295 Plural diazine rings 1,405
544/297 Nitrogen attached directly at 2-position by nonionic bonding and sulfur bonded directly to the nitrogen 201
544/298 Chalcogen bonded directly to diazine ring carbon 814
544/322 Nitrogen attached directly to diazine ring by nonionic bonding 399
544/333 Additional hetero ring which is unsaturated 1,803
544/334 Halogen attached directly to the diazine ring by nonionic bonding 351
544/335 Chalcogen attached indirectly to the diazine ring by nonionic bonding 1,155


Patents under this class:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

Patent Number Title Of Patent Date Issued
8703721 Arylalkylamine compound and process for preparing the same Apr. 22, 2014
8703771 Preparation method of dihydroindene amide compounds, their pharmaceutical compositions containing compounds thereof and use as protein kinases inhibitor Apr. 22, 2014
8691998 Catalysts containing N-heterocyclic carbenes for enantioselective synthesis Apr. 8, 2014
8680159 Bradykinin 1 receptor modulating compounds Mar. 25, 2014
8680271 Process for synthesizing 6-bromo-3-1-(1-methyl-1H-pyrazol-4-yl)-5-(3(R)-piperidinyl)pyrazolo[1,5-a- ]pyrimidin-7-amine Mar. 25, 2014
8674093 Process for the preparation of an orexin receptor antagonist Mar. 18, 2014
8664386 Methods for preparing anti-viral nucleotide analogs Mar. 4, 2014
8664230 Pyridopyrimidine derivatives and use thereof Mar. 4, 2014
8653263 Disubstituted octahydropyrrolo[3,4-c]pyrroles as orexin receptor modulators Feb. 18, 2014
8653266 Process for the production of etravirine Feb. 18, 2014
8653097 Tetra-aza-heterocycles as phosphatidylinositol-3-kinases (P13-kinases) inhibitor Feb. 18, 2014
8642585 Indanyloxydihydrobenzofuranylacetic acids Feb. 4, 2014
8628863 Indenopyrene compound and organic light-emitting device using the compound Jan. 14, 2014
8618288 Pyrimidine compounds as serotonin receptor modulators Dec. 31, 2013
8614221 Inhibitors of Akt activity Dec. 24, 2013
8614201 Heterocyclic amides as modulators of TRPA1 Dec. 24, 2013
8609842 Method for synthesizing Imatinib Dec. 17, 2013
8609839 Camphor-derived compounds, method for manufacturing the same, and application thereof Dec. 17, 2013
8606529 High-resolution melting analysis Dec. 10, 2013
8604191 Synthesis and novel salt forms of (R)-5-((E)-2-pyrrolidin-3YLVINYL)pyrimidine Dec. 10, 2013
8598341 Process for etravirine intermediate and polymorphs of etravirine Dec. 3, 2013
8598202 Aryl-hydroxyethylamino-pyrimidines and triazines as modulators of fatty acid amide hydrolase Dec. 3, 2013
8592430 Quinazolin-oxime derivatives as Hsp90 inhibitors Nov. 26, 2013
8592591 Fused bicyclic imidazoles Nov. 26, 2013
8580807 Bicyclic piperidine and piperazine derivatives as GPCR modulators for the treatment of obesity, diabetes and other metabolic disorders Nov. 12, 2013
8575338 Pyrimidine, pyridine and triazine derivatives as maxi-K channel openers Nov. 5, 2013
8575168 Compounds and compositions as modulators of GPR119 activity Nov. 5, 2013
8575344 Process for preparing voriconazole by using new intermediates Nov. 5, 2013
8569322 Lamivudine oxalate and preparation method thereof Oct. 29, 2013
8569478 Modified 4'-nucleosides as antiviral agents Oct. 29, 2013
8563559 Pinane-substituted pyrimidinediamine derivatives useful as Axl inhibitors Oct. 22, 2013
8563715 Pyrimidine derivative having cell protecting effect and uses thereof Oct. 22, 2013
8557876 Pyrimidine derivatives and their use in perfume compositions Oct. 15, 2013
8552021 Phosphoramidate derivatives of nucleosides Oct. 8, 2013
8552002 Compounds and compositions as protein kinase inhibitors Oct. 8, 2013
8541434 Ethynyl-substituted pyridine and pyrimidine derivatives and their use in treating viral infections Sep. 24, 2013
8541423 Methods and compositions for treating pain Sep. 24, 2013
8541575 3,4-diarylpyrazoles as protein kinase inhibitors Sep. 24, 2013
8541433 Combination comprising macitentan and paclitaxel for treating multi-drug resistant ovarian cancer Sep. 24, 2013
8530461 Azetidine derivatives Sep. 10, 2013
8524760 HCV protease inhibitors and uses thereof Sep. 3, 2013
8524896 Chemical compounds Sep. 3, 2013
8519125 Compositions and methods for biological sample storage Aug. 27, 2013
8512820 Organic ionic phenylpyrimidine compounds and displays formed thereof Aug. 20, 2013
8513252 Pyrazole derivatives and their use as positive allosteric modulators of metabotropic glutamate receptors Aug. 20, 2013
8507499 Substituted indole/indazole-pyrimidinyl compounds Aug. 13, 2013
8507673 Process for preparing 5,7 diaminopyrazolo [1,5-A] pyrimidine compounds Aug. 13, 2013
8501760 Pharmaceutical compositions comprising nilotinib or its salt Aug. 6, 2013
8501740 Methods of treatment of opioid tolerance, physical dependence, pain and addiction with inhibitors of certain growth factor receptors Aug. 6, 2013
8492111 Arylalkylamine compound and process for preparing the same Jul. 23, 2013

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