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Class Information
Number: 540/225
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 > Hetero ring is four-membered containing nitrogen and having chalcogen double bonded directly to a ring carbon which is adjacent to the ring nitrogen > Polycyclo ring system containing the hetero ring as one of the cyclos > The ring nitrogen is shared by a six-membered ring > The six-membered ring contains sulfur > 1-thia-5-aza-bicyclo(4.2.0)octane (including unsaturated; e.g., cepham, etc.) > Additional hetero ring containing > 3-position substituent contains a pyridine ring (e.g., quinoline, thienopyridine, lutidines, etc.) > 7-position substituent contains hetero ring
Description: Compounds in which a substituent on the 7-position of the cepham or cephem ring system contains or consists of a hetero ring.










Patents under this class:
1 2 3 4 5 6 7 8 9 10

Patent Number Title Of Patent Date Issued
8557978 Cross-linked glycopeptide-cephalosporin antibiotics Oct. 15, 2013
8247400 Cephem compounds useful for the treatment of bacterial infections Aug. 21, 2012
8148632 Quantum dot solar cell Apr. 3, 2012
8044195 Cross-linked glycopeptide-cephalosporin antibiotics Oct. 25, 2011
7871997 Cephalosporin compounds Jan. 18, 2011
7728127 Cross-linked glycopeptide-cephalosporin antibiotics Jun. 1, 2010
7553962 Cross-linked glycopeptide-cephalosporin antibiotics Jun. 30, 2009
7488724 7-alkylidene-3-substituted-3-cephem-4-carboxylates as beta-lactamase inhibitors Feb. 10, 2009
7479556 Process for producing Cefepime and cephalosporin analogues Jan. 20, 2009
7452990 Intermediates for synthesis of cephalosporins and process for preparation of such intermediates Nov. 18, 2008
7384928 Broad spectrum cephem compounds Jun. 10, 2008
7339055 Process for the preparation of cephalosporin antibiotic Mar. 4, 2008
7071329 Process for preparing cephalosporins with salified intermediate Jul. 4, 2006
7064199 Process for the manufacture of 3-amino-pyrrolidine derivatives Jun. 20, 2006
6919449 Process for the preparation of cephalosporin intermediate and its use for the manufacture of cephalosporin compounds Jul. 19, 2005
6916801 7-Alkylidene-3-substituted-3-cephem-4-carboxylates as .beta.-lactamase inhibitors Jul. 12, 2005
6723716 7-acylamino-3-heteroarylthio-3-cephem carboxylic acid antibiotics and prodrugs thereof Apr. 20, 2004
6642377 Process for the preparation of basic antibiotic-inorganic acid addition salts and intermediate oxalates Nov. 4, 2003
6610845 Thioester derivatives of thiazolyl acetic acid and their use in the preparation of cephalosporin compounds Aug. 26, 2003
6583133 Propenyl cephalosporin derivatives and process for the manufacture thereof Jun. 24, 2003
6552186 .beta.-lactam production Apr. 22, 2003
6531465 Antibacterial cephalosporins Mar. 11, 2003
6417175 Phosphonocephem derivatives, process for the preparation of the same, and use thereof Jul. 9, 2002
6407091 .beta.-lactamase inhibiting compounds Jun. 18, 2002
6388070 Thioester derivatives of thiazolyl acetic acid and their use in the preparation of cephalosporin compounds May. 14, 2002
6384212 Process for preparing cephalosporin antibiotics using new thiazole compound May. 7, 2002
6294668 Vinylpyrrolidinone cephalosporin derivatives Sep. 25, 2001
6294527 Cephem compounds Sep. 25, 2001
6265394 Bis quaternary MRSA cephem derivatives Jul. 24, 2001
6214818 Cephem compounds and pharmaceutical compositions containing the same Apr. 10, 2001
6159961 Cephem compounds Dec. 12, 2000
6159706 Application of enzyme prodrugs as anti-infective agents Dec. 12, 2000
6150350 Antimicrobial compositions Nov. 21, 2000
6150351 Cephem compounds and pharmaceutical use thereof Nov. 21, 2000
6107481 De-esterification process Aug. 22, 2000
6100393 Process for purifying 7-substituted aminodeacetoxy-cephalosporins through the use of filtration membranes Aug. 8, 2000
6093712 Cephalosporin derivatives Jul. 25, 2000
6066630 Cephalosporin antibiotics May. 23, 2000
6057312 Cephalosporin antibiotics May. 2, 2000
6034076 Stable hydrates of a cephalosporin chloride salt Mar. 7, 2000
6025352 Cephalosporin antibiotics Feb. 15, 2000
5981519 Vinyl-pyrrolidinone cephalosporins Nov. 9, 1999
5948774 Cephem compounds, their production and use Sep. 7, 1999
5945414 Process for the preparation of new intermediates useful in the synthesis of cephalosporins Aug. 31, 1999
5935950 Cephalosporin pyridinium derivatives Aug. 10, 1999
5922861 De-esterification process Jul. 13, 1999
5883248 Cephalosporins Mar. 16, 1999
5872249 3-ammoniopropenyl cephalosporin compounds as antibacterial agents and process for preparing the same Feb. 16, 1999
5831085 Process for manufacture of cephalosporin such as ceftazidime and intermediate thereof Nov. 3, 1998
5804577 Cephalosporin derivatives Sep. 8, 1998

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