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Class Information
Number: 544/272
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 > Polycyclo ring system having the diazine ring as one of the cyclos > Bicyclo ring system having the diazine ring as one of the cyclos > Four ring hetero atoms in the bicyclo ring system > Four ring nitrogens in the bicyclo ring system > The other cyclo in the bicyclo ring system is five-membered > Purines (including hydrogenated) > Chalcogen bonded directly to ring carbon of the purine ring system > At 2- and 6-positions (e.g., theophyllines, etc.) > Nitrogen attached directly or indirectly to the purine ring system by nonionc bonding
Description: Compounds wherein nitrogen is attached directly or indirectly to the purine ring system by nonionic bonding.










Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
8569489 7-[4-(Benzhydrylpiperazinyl-1)butyl]-3-methylxanthine and its salts with organic or inorganic acids possessing antihistaminic and antiallergenic activity Oct. 29, 2013
8492390 Synthesis of locked nucleic acid derivatives Jul. 23, 2013
8324224 A.sub.2B adenosine receptor antagonists Dec. 4, 2012
8222257 Phosphono-pent-2-en-1-yl nucleosides and analogs Jul. 17, 2012
8207175 Inhibitor compounds Jun. 26, 2012
8163479 Specific substrates for O.sup.6-alkylguanine-DNA alkyltransferase Apr. 24, 2012
8084458 Synthesis of locked nucleic acid derivatives Dec. 27, 2011
8044061 8-alkynylxanthines and derivatives Oct. 25, 2011
7902360 A.sub.1 adenosine receptor antagonists Mar. 8, 2011
7875603 Specific inhibitors for vascular endothelial growth factor receptors Jan. 25, 2011
7838523 Certain substituted amides, method of making, and method of use thereof Nov. 23, 2010
7820815 Process for the preparation of chiral 8-(-3-aminopiperidin-1-yl) xanthines Oct. 26, 2010
7799524 Substrates for O6-alkylguanina-DNA alkyltransferase Sep. 21, 2010
7786301 Process for preparing xanthine phosphodiesterase V inhibitors and precursors thereof Aug. 31, 2010
7772226 Condensed imidazole derivatives Aug. 10, 2010
7759355 Adenosine A2A receptor antagonists for treating restless legs syndrome or nocturnal myoclonus Jul. 20, 2010
7713982 Xanthines with HM74A receptor activity May. 11, 2010
7645763 8-[3-amino-piperidin-1-yl]-xanthines, their preparation and their use as pharmaceutical composition Jan. 12, 2010
7569575 Synthesis of locked nucleic acid derivatives Aug. 4, 2009
7569574 Purine derivatives, the preparation thereof and their use as pharmaceutical compositions Aug. 4, 2009
7560450 Xanthine derivatives, the preparation thereof and their use as pharmaceutical compositions Jul. 14, 2009
7550455 8-(piperazin-1yl)- and 8-([1,4]diazepan-1yl)-xanthines, the preparation thereof and their use as pharmaceutical composition Jun. 23, 2009
7501426 8-[3-amino-piperidin-1-yl]-xanthines, their preparation and their use as pharmaceutical compositions Mar. 10, 2009
7495003 8-(3-amino-piperidin-1-yl)-7-(but-2-ynyl)-xanthines, the preparation thereof and their use as pharmaceutical compositions Feb. 24, 2009
7495002 3-methyl-7-butinyl-xanthines, the preparation thereof and their use as pharmaceutical compositions Feb. 24, 2009
7495004 Purine derivatives as liver X receptor agonists Feb. 24, 2009
7482337 Xanthine derivatives, the preparation thereof and their use as pharmaceutical compositions Jan. 27, 2009
7423041 A1 adenosine receptor antagonists Sep. 9, 2008
7407955 8-[3-amino-piperidin-1-yl]-xanthines, the preparation thereof and their use as pharmaceutical compositions Aug. 5, 2008
7317017 A.sub.2B adenosine receptor antagonists Jan. 8, 2008
7312223 Metabolite of xanthine Phosphodiesterase 5 inhibitor and derivatives thereof useful for treatment of erectile dysfunction Dec. 25, 2007
7307166 Oxpurine nucleosides and their congeners, and acyl, derivatives thereof, for improvement of hematopoiesis Dec. 11, 2007
7304070 A.sub.2B adenosine receptor antagonists Dec. 4, 2007
7247639 A1 adenosine receptor antagonists Jul. 24, 2007
7235538 Heterocyclic compounds, which are inhibitors of the enzyme DPP-IV Jun. 26, 2007
7202252 A.sub.1 adenosine receptor antagonists Apr. 10, 2007
7192962 Xanthine phosphodiesterase V inhibitor polymorphs Mar. 20, 2007
7192952 Heterocyclic compounds that are inhibitors of the enzyme DPP-IV Mar. 20, 2007
7135475 Amide substituted xanthine derivatives Nov. 14, 2006
7125993 A.sub.2B adenosine receptor antagonists Oct. 24, 2006
7105665 A.sub.2B adenosine receptor antagonists Sep. 12, 2006
7074923 Process for preparing xanthine phosphodiesterase V inhibitors and precursors thereof Jul. 11, 2006
7074798 Xanthine derivative and DPPIV inhibitor Jul. 11, 2006
7005430 Fused purine derivatives Feb. 28, 2006
6998484 Synthesis of purine locked nucleic acid analogues Feb. 14, 2006
6977300 A2B adenosine receptor antagonists Dec. 20, 2005
6869947 Heterocyclic compounds that are inhibitors of the enzyme DPP-IV Mar. 22, 2005
6825349 A2B adenosine receptor antagonists Nov. 30, 2004
6815446 Selective antagonists of A2B adenosine receptors Nov. 9, 2004
6806270 Selective antagonists of A2B adenosine receptors Oct. 19, 2004

1 2 3 4










 
 
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