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.) > Chalcogen attached directly to the five-membered hetero ring by nonionic bonding (e.g., 3-pyrrolidinols, etc.) > Patents

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Class Information
Number: 548/541
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.) > Chalcogen attached directly to the five-membered hetero ring by nonionic bonding (e.g., 3-pyrrolidinols, etc.)
Description: Compounds wherein chalcogen (i.e., oxygen, sulfur, selenium, or tellurium) is attached directly to the five-membered hetero ring by nonionic bonding.

Sub-classes under this class:

Class Number	Class Name	Patents
548/542	Chalcogen attached directly to ring nitrogen of the five-membered hetero ring by nonionic bonding (e.g., pyrrolidine-n-oxides, etc.)	359
548/556	Chalcogen attached indirectly to the five-membered hetero ring by acyclic nonionic bonding (e.g., 4-hydroxy -3-pyrrolidinemethanol, etc.)	190
548/543	Chalcogen bonded directly to a ring carbon of the five-membered hetero ring which is adjacent to the ring nitrogen (e.g., 2-pyrrolidones, etc.)	416

Patents under this class:

1 2 3 4 5

Patent Number	Title Of Patent	Date Issued
7598358	Metal complex of heterocyclic aromatic compound	Oct. 6, 2009
7534790	Ion channel modulating compounds and uses thereof	May. 19, 2009
7511154	Preparation of N-protected-3-pyrrolidine-lactam substituted phosphonium salts	Mar. 31, 2009
7501528	Method for preparing enantiomerically pure 4-pyrrolidino phenylbenzyl ether derivatives	Mar. 10, 2009
7498447	Therapeutic compounds	Mar. 3, 2009
7485731	Method for preparing enantiomerically pure 4-pyrrolidinophenylbenzyl ether derivatives	Feb. 3, 2009
7485664	Inhibitors of TACE	Feb. 3, 2009
7482475	Therapeutic lactams	Jan. 27, 2009
7476747	Substituted gamma lactams as therapeutic agents	Jan. 13, 2009
7465751	1-substituted-3-pyrrolidine derivatives as muscarinic receptor antagonists	Dec. 16, 2008
7456210	Benzyloxy derivatives	Nov. 25, 2008
7456211	Peptide deformylase inhibitors	Nov. 25, 2008
7425575	Spirocyclic 3-phenyl-3-substituted 4-ketolactams and 4-ketolactones	Sep. 16, 2008
7345087	Aminocyclohexyl ether compounds and uses thereof	Mar. 18, 2008
7326696	Amino-methyl substituted tetracycline compounds	Feb. 5, 2008
7297712	Cationic amphiphiles for intracellular delivery of therapeutic molecules and its composition, process and method of treatment	Nov. 20, 2007
7288565	Azasugar compound	Oct. 30, 2007
7271272	Process for preparing 4-aminomethyl-3-alkoxyiminopyrrolidine methanesulfonate	Sep. 18, 2007
7259184	Ion channel modulating compounds and uses thereof	Aug. 21, 2007
7253205	Gem-disubstituted cyclohexane derivatives and their use as therapeutic agents	Aug. 7, 2007
7235581	4-pyrrolidino-phenyl-benzyl ether derivatives	Jun. 26, 2007
7217826	2-oxo-1-pyrrolidine derivatives, process for preparing them and their uses	May. 15, 2007
7192979	EP4 receptor selective agonist in the treatment of osteoporosis	Mar. 20, 2007
7189756	Pyrrolidine derivatives	Mar. 13, 2007
7157490	Phenylalanine derivatives as dipeptidyl peptidase inhibitors for the treatment or prevention of diabetes	Jan. 2, 2007
7153978	Method for purifying N-methyl-2-pyrrolidone	Dec. 26, 2006
7101897	Farnesyl transferase inhibitors	Sep. 5, 2006
7098238	Degradation fragments	Aug. 29, 2006
7091204	Sulfonamides	Aug. 15, 2006
7064218	Aromatic compounds and poly(oxyalkylene) containing aromatic compounds possessing antibacterial, antifungal or antitumor activity	Jun. 20, 2006
7057036	Pyrrolothiazine and pyrrolothiazepine compounds having serotonin-2 receptor antagonistic and alpha-1-blocking action	Jun. 6, 2006
7057053	Ion channel modulating compounds and uses thereof	Jun. 6, 2006
7030138	Benzamidine derivatives	Apr. 18, 2006
7026349	Sulfonamides	Apr. 11, 2006
6969770	2-oxo-1-pyrrolidine derivatives, process for preparing them and their uses	Nov. 29, 2005
6936633	Pyrrolidinone derivatives	Aug. 30, 2005
6933390	Process for the arylation of aza-heterocycles with activated aromatics in presence of caesium carbonate	Aug. 23, 2005
6923835	Bis-para-phenylenediamine derivatives comprising a pyrrolidyl group and use of these derivatives for dyeing keratin fibres	Aug. 2, 2005
6872745	Antipicornaviral compounds and compositions, their pharmaceutical uses, and materials for their synthesis	Mar. 29, 2005
6867221	Cyclic amine compounds and pharmaceutical composition containing the same	Mar. 15, 2005
6861535	Cyclization method for the synthesis of pyrrolidine derivative compounds	Mar. 1, 2005
6821963	4-Bromo or 4-iodo phenylamino benzhydroxamic acid derivatives and their use as MEK inhibitors	Nov. 23, 2004
6794519	Process for the production of sulfonic esters	Sep. 21, 2004
6794511	Sulfonyl aryl or heteroaryl hydroxamic acid compounds	Sep. 21, 2004
6790860	Pyrrolidine derivatives	Sep. 14, 2004
6777438	Inhibitors of farnesyl protein transferase	Aug. 17, 2004
6664248	2-nitromethylidene/2-cyanimino/2-nitro-imino-pyrrolidines and piperidines, intermediates, and their use as pesticides	Dec. 16, 2003
6657069	Amido compounds and process for producing the same	Dec. 2, 2003
6624313	Process for preparing hydroxypyrrolidinyl ethylamine compounds useful as kappa agonists	Sep. 23, 2003
6620945	Process for producing stereoisomer of pyrrolidine derivative	Sep. 16, 2003