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Class Information
Number: 549/313
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) > Oxygen containing hetero ring (e.g., dioxirane, etc.) > Lactones (i.e., -c(=x)o-, wherein x is chalcogen, is part of the hetero ring) > The lactone ring is five-membered > Additional chalcogen bonded directly to the lactone ring
Description: Compounds wherein an additional chalcogen (i.e., oxygen, sulfur, selenium, or tellurium) is bonded directly to the lactone ring.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7569518 |
Pyridazine Compound and Use Thereof |
Aug. 4, 2009 |
| 7432381 |
1,3-oxathiolane-2-thione compounds |
Oct. 7, 2008 |
| 7414145 |
Method of enantioselective nucleophilic addition reaction of enamide to carbonyl group and synthesis method of optically active .alpha.-hydroxy-.gamma.-keto acid ester and hydroxydiketone |
Aug. 19, 2008 |
| 7378535 |
Production of furanones |
May. 27, 2008 |
| 7227029 |
Method for the continuous production of N-methyl-2-pyrrolidone (NMP) |
Jun. 5, 2007 |
| 7214641 |
Catalyst and hydrogenation of carbonyl compounds in the liquid phase using the catalyst |
May. 8, 2007 |
| 7183423 |
Process for the preparation of organic compounds with imide catalysts |
Feb. 27, 2007 |
| 7141681 |
Continuous process for preparing dihydropyrones |
Nov. 28, 2006 |
| 7109357 |
Process and intermediates for making substituted aspartic acid acetals |
Sep. 19, 2006 |
| 7101912 |
Carbidopa prodrugs and derivatives, and compositions and uses thereof |
Sep. 5, 2006 |
| 7064220 |
Production of furanones |
Jun. 20, 2006 |
| 7038064 |
Process for producing hydroxylactones |
May. 2, 2006 |
| 6897324 |
Process for the preparation of 11-oxaprostaglandins and intermediates therein |
May. 24, 2005 |
| 6838128 |
High polarization dopants for ferroelectric liquid crystal compositions |
Jan. 4, 2005 |
| 6835747 |
Ft-0554a substances and process for the preparation thereof |
Dec. 28, 2004 |
| 6812368 |
Diastereoselective hydrogenation of 1,3-hydroxyketones |
Nov. 2, 2004 |
| 6756013 |
Compositions of iodonium compounds and methods and uses thereof |
Jun. 29, 2004 |
| 6737460 |
Vinyl monomers having polyenic side chains derived from highly unsaturated fatty acids and derivatives thereof, and polymers of said monomers |
May. 18, 2004 |
| 6713639 |
Process for preparing enantiomerically pure (S)-3-hydroxy-gamma-butyrolactone |
Mar. 30, 2004 |
| 6713290 |
Process for preparing optically pure (S)-3-hydroxy-.gamma.-butyrolactone |
Mar. 30, 2004 |
| 6703515 |
Chiral derivatives of Hibiscus acid bearing lactone ring moiety, process for preparing the same and a convenient method for the large-scale isolation of Hibiscus acid |
Mar. 9, 2004 |
| 6680389 |
Ester compounds |
Jan. 20, 2004 |
| 6667330 |
Furanone derivatives |
Dec. 23, 2003 |
| 6642394 |
Process for producing (meth)acrylic anhydride and process for producing (meth)acrylic ester |
Nov. 4, 2003 |
| 6608214 |
Process for producing optically active .gamma.-butyrolactone |
Aug. 19, 2003 |
| 6593478 |
Stereospecific hydrolysis of optically active esters |
Jul. 15, 2003 |
| 6576632 |
Biaryl compounds useful as anticancer agents |
Jun. 10, 2003 |
| 6541646 |
Method of preparing COX-2 inhibitors |
Apr. 1, 2003 |
| 6500963 |
Process for preparing optically active dihydropyrones |
Dec. 31, 2002 |
| 6486196 |
Anticancer compounds: process for their preparation and pharmaceutical compositions containing them |
Nov. 26, 2002 |
| 6429319 |
Continuous process for the production of optically pure (S)-beta-hydroxy-gamma-butyrolactone |
Aug. 6, 2002 |
| 6417377 |
Process for preparing enantiomer-enriched amino- and hydroxyfuranones |
Jul. 9, 2002 |
| 6410590 |
Compounds having antitumor activity: process for their preparation and pharmaceutical compositions containing them |
Jun. 25, 2002 |
| 6395724 |
Multibinding inhibitors of cyclooxygenase-2 |
May. 28, 2002 |
| 6313321 |
Process for preparing .beta.-hydroxy-.gamma.-butyrolactones and .beta.-(meth)acryloyloxy-.gamma.-butrolactones |
Nov. 6, 2001 |
| 6310221 |
Methods for synthesis of substituted tetrahydrofuran compound |
Oct. 30, 2001 |
| 6268515 |
Process for producing 3-hydroxy-.gamma.-butyrolactone derivatives |
Jul. 31, 2001 |
| 6251642 |
Continuous process for preparing optically pure (S)-3-hydroxy-.gamma.-butyrolactone |
Jun. 26, 2001 |
| 6251830 |
Dialkyl-halogenophenyl-substituted ketoenols |
Jun. 26, 2001 |
| 6235899 |
Method for preparing alkyloxy furanone derivatives, compounds obtained by said method and use of said compounds |
May. 22, 2001 |
| 6166070 |
Kodaistatins A, B, C and D, a process for their production and their use |
Dec. 26, 2000 |
| 6133263 |
Endothelin antagonists with ether-linked groups |
Oct. 17, 2000 |
| 6133464 |
Chiral ferrocenyls |
Oct. 17, 2000 |
| 6127553 |
Convenient method for large-scale isolation of hibiscus acid |
Oct. 3, 2000 |
| 6124122 |
Process for preparing optically pure (S)-3-hydroxy-.gamma.-butyrolactone |
Sep. 26, 2000 |
| 6114374 |
2-and 2,5-substituted phenylketoenols |
Sep. 5, 2000 |
| 6114547 |
Hydroxy-substituted monolactones and use thereof as intermediates for preparing lubricating oil and fuel additives |
Sep. 5, 2000 |
| 6100292 |
Ketone derivatives and their medical applications |
Aug. 8, 2000 |
| 6071954 |
(methylsulfonyl)phenyl-2-(5H)-furanones with oxygen link as COX-2 inhibitors |
Jun. 6, 2000 |
| 6069270 |
Optical resolution method of (.+-.)-3,4-dihydroxybutanoic acid |
May. 30, 2000 |
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