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 five-membered consisting of one nitrogen and four carbons (e.g., halopyrrolidines, etc.) > Additional hetero ring, which is attached directly or indirectly to the five-membered hetero ring by nonionic bonding > The additional hetero ring also contains nitrogen > Patents

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Class Information
Number: 548/518
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 five-membered consisting of one nitrogen and four carbons (e.g., halopyrrolidines, etc.) > Additional hetero ring, which is attached directly or indirectly to the five-membered hetero ring by nonionic bonding > The additional hetero ring also contains nitrogen
Description: Compounds wherein nitrogen is a ring member of the additional hetero ring.

Sub-classes under this class:

Class Number	Class Name	Patents
548/519	Ring carbon of each of the two nitrogen containing hetero rings is bonded directly to chalcogen (e.g., both rings may be bonded to the same oxygen atom or to different oxygen atoms, etc.)	136
548/523	Ring nitrogens of the two nitrogen containing hetero rings are bonded directly to the same atom or chain, which chain may include a ring	254

Patents under this class:

1 2 3 4 5 6 7 8 9 10 11 12 13 14

Patent Number	Title Of Patent	Date Issued
7618967	Indane compounds	Nov. 17, 2009
7612153	Heterobifunctional poly(ethylene glycol) and uses thereof	Nov. 3, 2009
7608592	HCV inhibitors	Oct. 27, 2009
7601716	Pyridopyrazines and derivatives thereof as ALK and c-Met inhibitors	Oct. 13, 2009
7601742	Pyrrolidones with anti-HIV activity	Oct. 13, 2009
7598250	Cyclic amine BACE-1 inhibitors having a heterocyclic substituent	Oct. 6, 2009
7592336	Hepatitis C virus inhibitors	Sep. 22, 2009
7592466	Ureas having antiangiogenic activity	Sep. 22, 2009
7589118	IAP BIR domain binding compounds	Sep. 15, 2009
7585882	Phosphodiesterase 4 inhibitors	Sep. 8, 2009
7579503	BIS (thio-hydrazide amide) salts for treatment of cancers	Aug. 25, 2009
7572824	Methods for minimizing thioamide impurities	Aug. 11, 2009
7563910	Heterocyclic cannabinoid receptor antagonists	Jul. 21, 2009
7557104	Imidazopyrazines as protein kinase inhibitors	Jul. 7, 2009
7553861	Dipeptidyl peptidase-IV inhibitors	Jun. 30, 2009
7553836	Melanin concentrating hormone receptor-1 antagonists	Jun. 30, 2009
7547724	IAP BIR domain binding compounds	Jun. 16, 2009
7528156	Compounds	May. 5, 2009
7501507	Route to formyl-porphyrins	Mar. 10, 2009
7498447	Therapeutic compounds	Mar. 3, 2009
7495016	Pyrrolidones with anti-HIV activity	Feb. 24, 2009
7485641	Substituted 3-amino-pyrrolidino-4-lactams	Feb. 3, 2009
7482475	Therapeutic lactams	Jan. 27, 2009
7482374	Pyrrolidine-2-ones as Factor Xa inhibitors	Jan. 27, 2009
7482335	Cyclic derivatives as modulators of chemokine receptor activity	Jan. 27, 2009
7476747	Substituted gamma lactams as therapeutic agents	Jan. 13, 2009
7456190	Compositions useful as protein kinase inhibitors	Nov. 25, 2008
7452999	Chemical process for the preparation of intermediates to obtain N-formyl hydroxy-lamine compounds	Nov. 18, 2008
7442807	N-phenylpyrrole guanidine derivatives as melanocortin receptor ligands	Oct. 28, 2008
7435833	Inhibitors of the 11-beta-hydroxysteroid dehydrogenase Type 1 enzyme	Oct. 14, 2008
7425633	Pyrrolidine compounds	Sep. 16, 2008
7417062	Substituted arylamides	Aug. 26, 2008
7414359	Low work function metal complexes and uses thereof	Aug. 19, 2008
7402262	Electroconductive polymers	Jul. 22, 2008
7399748	Antitumor therapy comprising distamycin derivatives	Jul. 15, 2008
7396851	Heterocyclic and benzoheterocyclic polyamides structurally related to the natural antibiotic distamycin A for the treatment of .beta.-thalassaemia	Jul. 8, 2008
7393846	Heterocyclic compounds useful for the treatment of inflammatory and allergic disorders	Jul. 1, 2008
7388007	Gamma-lactams as beta-secretase inhibitors	Jun. 17, 2008
7385084	Bis(thio-hydrazide amide) salts for treatment of cancers	Jun. 10, 2008
7381741	3-amino-2-phenylpyrrolidine derivatives	Jun. 3, 2008
7378436	Compounds	May. 27, 2008
7371767	Heteroaryl substituted pyrrole modulators of metabotropic glutamate receptor-5	May. 13, 2008
7365092	Inhibitors of serine proteases, particularly HCV NS3-NS4A protease	Apr. 29, 2008
7348346	Pharmaceutical compositions as inhibitors of dipeptidyl peptidase-IV (DPP-IV)	Mar. 25, 2008
7348347	Substituted 4,5,6,7-tetrahydrobenzthiazol-2-ylamine compounds	Mar. 25, 2008
7338947	Cyclic derivatives as modulators of chemokine receptor activity	Mar. 4, 2008
7329765	Benzothiophene compounds having antiinfective activity	Feb. 12, 2008
7319098	1,3-dioxoisoindole derivatives having selective antagonism of T-type calcium channel	Jan. 15, 2008
7314885	Pyrrole compounds useful as kinase inhibitors	Jan. 1, 2008
7312218	Sulfonylaminovalerolactams and derivatives thereof as factor Xa inhibitors	Dec. 25, 2007