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Class Information
Number: 549/401
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.) > The hetero ring is six-membered > Polycyclo ring system having the hetero ring as one of the cyclos > Bicyclo ring system having the hetero ring as one of the cyclos > The bicyclo ring system consists of the hetero ring and a six-membered carbocyclic ring > Chalcogen bonded directly to the hetero ring > Chalcogen bonded directly to the ring carbon para to the ring oxygen (e.g., chromones, etc.)
Description: Compounds in which chalcogen (i.e., oxygen, sulfur, selenium, or tellurium) is bonded directly to the ring carbon in the position which is para to the ring oxygen.










Sub-classes under this class:

Class Number Class Name Patents
549/403 Benzene ring bonded directly to the hetero ring (e.g., flavones, etc.) 246
549/402 Having -c(=x)-, wherein x is chalcogen, bonded directly to the hetero ring 126


Patents under this class:
1 2 3 4 5

Patent Number Title Of Patent Date Issued
8629197 Chemically patterned hydrogels, manufacture and use thereof Jan. 14, 2014
8329928 Compounds, compositions and methods Dec. 11, 2012
8314070 Osmoprotective complexes for prevention of intra-cellular dehydration in mammals Nov. 20, 2012
8293928 Fluorinated 4-oxo-chroman-7-carboxylates Oct. 23, 2012
8273905 Aminoalkyl-amidomethyl-substituted 2-(4-sulphonylamino)-3-hydroxy-3,4-dihydro-2H-chroman-6-yl derivatives Sep. 25, 2012
8263790 Method for enantioselective hydrogenation of chromenes Sep. 11, 2012
8257981 Lanthanide chelates and use thereof in bioanalysis Sep. 4, 2012
8227511 Substituted chromanol derivatives and their use Jul. 24, 2012
8110688 Method for producing indole derivative having piperidine ring Feb. 7, 2012
8088935 Compounds and methods for the treatment of asthma Jan. 3, 2012
8003810 Process for preparing Nebivolol Aug. 23, 2011
7960573 Method for enantioselective hydrogenation of chromenes Jun. 14, 2011
7910621 Small molecule antagonists of XIAP family proteins Mar. 22, 2011
7851640 Catalytic enantioselective synthesis of flavanones and chromanones Dec. 14, 2010
7838553 Benzopyran derivatives as potassium channel openers Nov. 23, 2010
7812183 Benzopyran derivatives as potassium channel openers Oct. 12, 2010
7754759 Arylsulfonyl chromans as 5-HT.sub.6 inhibitors Jul. 13, 2010
7714150 Aminoalkyl-amidomethyl-substituted 2-(4-sulphonylamino)-3-hydroxy-3,4-dihydro-2H-chroman-6-yl derivatives May. 11, 2010
7671220 Processes for the 3,3-dialkylation of 4-chromanones Mar. 2, 2010
7662977 PI-3 kinase inhibitor prodrugs Feb. 16, 2010
7642283 Mitochrondrial permeability transition pore affinity labels and modulators Jan. 5, 2010
7629477 Compounds, compositions and methods Dec. 8, 2009
7601754 Flavonoid compounds as therapeutic antioxidants Oct. 13, 2009
7598403 Synthesis of chromanones Oct. 6, 2009
7582675 Flavonoid compound and process for producing the same Sep. 1, 2009
7572919 Heteroaryl-containing isoflavones as aromatase inhibitors Aug. 11, 2009
7544711 Use of nitroderivatives in urinary incontinence Jun. 9, 2009
7528250 Chroman derivatives and uses thereof May. 5, 2009
7528267 Method for enantioselective hydrogenation of chromenes May. 5, 2009
7384976 Nebivolol and its metabolites in combination with nitric oxide donors, compositions and methods of use Jun. 10, 2008
7345090 Galenical formulation Mar. 18, 2008
7326797 Manufacture of isoflavones Feb. 5, 2008
7285671 Materials and methods for treating coagulation disorders Oct. 23, 2007
7226644 Chroman derivative and liquid-crystal composition containing the compound Jun. 5, 2007
7138429 Flavonoid compound and process for producing the same Nov. 21, 2006
7138430 Nitrosated and nitrosylated nebivolol and its metabolites, compositions and methods of use Nov. 21, 2006
7094914 Process for producing chromone compound Aug. 22, 2006
7012149 Process for the production of (-)-epigallocatechin gallate Mar. 14, 2006
6949537 PI-3 kinase inhibitor prodrugs Sep. 27, 2005
6936726 Flavanol and cysteamine conjugates Aug. 30, 2005
6924376 Compounds, compositions and methods Aug. 2, 2005
6849746 Synthetic methods for polyphenols Feb. 1, 2005
6750248 Methods for preparing an estrogenic preparation and isolated estrogenic compounds from a plant and uses thereof Jun. 15, 2004
6737439 Aromatase inhibitors from Broussonetia papyrifera May. 18, 2004
6677371 4-oxybenzopyran derivative Jan. 13, 2004
6645997 Benzopyrancarboxylic acid derivatives for the treatment of diabetes and lipid disorders Nov. 11, 2003
6620842 Chalcones Sep. 16, 2003
6608089 Derivatives of flavones, xanthones and coumarins Aug. 19, 2003
6579903 Klainetins and their derivatives, method for their preparation and use thereof Jun. 17, 2003
6566397 Acyclic isoprenoid ether derivatives as chemotherapeutics May. 20, 2003

1 2 3 4 5










 
 
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