Patents
Sitemap › C07 - Organic chemistry › C07D - Heterocyclic compounds › C07D 501 - Heterocyclic compounds containing 5-thia-1-azabicyclo [4.2.0] octane ring systems, i.e. compounds containing a ring system of the formula: , e.g. cephalosporins; Such ring systems being further condensed, e.g. 2,3-condensed with an oxygen-, nitrogen- or sulfur-containing hetero ring
Patents for C07D 501 - Heterocyclic compounds containing 5-thia-1-azabicyclo [4.2.0] octane ring systems, i.e. compounds containing a ring system of the formula: , e.g. cephalosporins; Such ring systems being further condensed, e.g. 2,3-condensed with an oxygen-, nitrogen- or sulfur-containing hetero ring (7,574)
10/2012
10/03/2012CN102702229A Preparation of ceftizoxime sodium key intermediate and preparation of high-content ceftizoxime sodium
09/2012
09/27/2012WO2012126148A1 New method for purifying cefotiam hydrochloride
09/27/2012WO2012126147A1 Purification method of cefmetazole sodium
09/26/2012CN102690243A Method for recovering raw materials in preparation process of 7-phenylacetamide-3-chloromethyl-3-cephem-4-carboxylic acid p-methoxybenzyl
09/26/2012CN102329328B Novel method for purifying ceftizoxime sodium compound
09/26/2012CN102070655B Imidazole ring-containing cephalosporin derivative
09/26/2012CN102010429B Synthesis process of ceftezole
09/19/2012CN102675345A Method for preparing cefepime hydrochloride
09/19/2012CN102675344A Method for preparing cefmenoxime hydrochloride
09/19/2012CN102675343A Method for preparing cefotiam hexetil hydrochloride by cefotiam hydrochloride
09/19/2012CN102675342A Preparation method of 7 beta-amino-7 alpha-methoxy-3-((1-methyl-1H-tetrazole-5-group) sulfomethyl)-3-cephem-4-diphenylmethyl carboxylate
09/19/2012CN102020665B Method for preparing cephapirin benzathine
09/19/2012CN101974021B Method for synthesizing cefuroxime acid
09/12/2012CN102659820A Cefmetazole sodium crystal compound, preparation method thereof and sterile powder for injection containing cefmetazole sodium crystal compound
09/12/2012CN102659819A Cefmenoxime hydrochloride compound and micronization method thereof
09/12/2012CN102659818A Hydrochloric acid cefotiam crystalline compound, preparation method thereof and medicine combination containing compound
09/12/2012CN102659817A Preparation method of cefdinir
09/12/2012CN102010427B Method for preparing cefdinir
09/12/2012CN101974020B Method for synthesizing cefdinir
09/07/2012WO2012117038A1 Degradation of penicillin compounds
09/05/2012CN1915998B Crystalline beta-lactam intermediate
09/05/2012CN102329329B Novel method for preparing cefmenoxime hydrochloride compound
09/05/2012CN102010430B Synthesis process of ceftezole sodium
08/2012
08/29/2012CN102408439B Cefmenoxime hydrochloride compound used for injection
08/29/2012CN101863906B Crystallization method of cefcapene ester hydrochloride monohydrate
08/29/2012CN101712687B Method for preparing intermediate of cefetamet pivoxil hydrochloride
08/23/2012US20120214967 Cross-linked glycopeptide-cephalosporin antibiotics
08/22/2012EP1051978B1 Crystallographically stable amorphous cephalosporin compositions and process for producing the same
08/22/2012CN102643295A Preparation method of cefminox sodium
08/22/2012CN102643294A Preparation method of cephalosporin nucleus intermediate
08/22/2012CN102643293A Cefdinir ternary complex and method for preparing cefdinir by using same
08/22/2012CN102351885B Method for preparing cefuroxime-L-arginine hydrate
08/22/2012CN102153566B Method for preparing cefdinir
08/22/2012CN102093390B Method for preparing cefuroxime acid
08/22/2012CN101906109B Method for preparing cefuroxime sodium
08/21/2012US8247400 Cephem compounds useful for the treatment of bacterial infections
08/15/2012CN102633819A Preparation method of cefoxitin
08/15/2012CN102633818A Cefoxitin esterified prodrug compound and oral preparation thereof
08/15/2012CN102633817A Cefoxitin esterified prodrug compound and oral preparations
08/15/2012CN102633816A Cefoxitin esterified prodrug compound and oral preparations
08/15/2012CN102633815A Cefoxitin esterified prodrug compound and oral preparation thereof
08/15/2012CN102633814A Preparation method of cefprozil
08/15/2012CN102633813A Preparation method of cefazolin sodium intermediate TDA (tolylenediamine)
08/08/2012CN102627660A Cefmetazole aseptic powder and its preparation method
08/08/2012CN102627659A Preparation method of cefoperazone intermediate 7-TMCA
08/08/2012CN101870704B Method for purifying cefotetan acid crude products
08/02/2012WO2012100383A1 Refining process of cefamandole sodium
08/01/2012CN102617607A Method for preparing cefazolin compounds
08/01/2012CN102617606A Method for preparing ceftezole sodium compound
08/01/2012CN102617605A Ceftriaxone sodium compound and preparation method thereof
08/01/2012CN102617604A Method utilizing coupling reaction crystallization to prepare cefuroxime sodium
08/01/2012CN102617603A Cefotaxime sodium production equipment system
08/01/2012CN102617602A Method for synthesizing 7-phenylacetylaminodeacetoxycephalo G acid
08/01/2012CN102617601A Method for preparing cefdinir
08/01/2012CN102617600A Synthesizing method of 7-amino-3-nor-3-cephem-4-carboxylic acid
08/01/2012CN102617506A Cefdinir and preparation method of its intermediate
08/01/2012CN102010431B Ceftezole sodium compound and novel method thereof
07/2012
07/25/2012CN102603772A Method for preparing sterile cefmenoxime hydrochloride compound
07/25/2012CN102603771A Preparation method of ceftizoxime sodium
07/25/2012CN101948476B Method for preparing cefotiam hexetil hydrochloride
07/25/2012CN101941983B Preparation method of high-purity cefoxitin sodium
07/25/2012CN101362733B Method for preparing cefixime side chain active ester
07/25/2012CN101362732B Method for preparing MICA
07/18/2012CN102584856A Method for preparing cefpirome sulfate
07/18/2012CN102584855A Improved method for preparing ceftiofur
07/18/2012CN102584854A Preparation technology of anhydrous crystal of cefotaxime sodium
07/18/2012CN102584853A Preparation method of 7-aminodeacetoxy cephalosporanic acid
07/18/2012CN101967156B Method for recrystallizing cefuroxime sodium
07/18/2012CN101857600B Method for preparing 7-phenylacetylamino-3-methylcephalosporanic acid
07/11/2012CN102559829A Synthetic method of ceftriaxone sodium crude salt
07/11/2012CN102558198A Novel process for synthesizing 7-amiro-3-nor-cephem-4-carboxyl icacid (7-ANCA)
07/04/2012CN102532168A Synthesis method of cefoperazone acid
07/04/2012CN102532167A Preparation method for cefotiam hexetil hydrochloride
07/04/2012CN102532166A Preparation method of refined ceftezole acid
07/04/2012CN102532165A Preparation method for cefathiamidine crystals
07/04/2012CN102295654B Cefoxitin compound and composition thereof
07/04/2012CN101798315B Cephalosporin derivative containing aza-cyclopropane nitrogen heterocyclic ring
07/04/2012CN101792455B Preparation method of high-purity 7-alpha-amino-7-methoxy-3-methyltetrazole thiomethyl cephalosporin benzyl ester
07/04/2012CN101759709B Refining process of 7-ACP.HCL
07/04/2012CN101759708B Cefodizime sodium crystal form and preparation method thereof as well as drug compound comprising crystal form
07/04/2012CN101747344B Synthesis Method of cefcapene pivoxil hydrochloride
07/04/2012CN101525341B Preparation method of 3-hydroxy-cepham compound
07/04/2012CN101397304B Method for preparing high-purity cefpirome sulfate by sodium salt precipitation method
07/04/2012CN101284840B Synthetic method of cefpirome sulfate
07/03/2012US8212024 crystallizing Ceftiofur sodium directly from the reaction mass; obviates the use of amine, sodium salt of weak acid like sodium 2-ethylhexonate and membrane filtration in Ceftiofur sodium synthesis
06/2012
06/27/2012CN102516262A Method for crystallizing cefixime trihydrate
06/27/2012CN102516261A Preparation method of cefdinir
06/27/2012CN101974022B Process for purifying cefsulodin sodium by solvent crystallization method
06/27/2012CN101798314B High-purity cefmenoxime hydrochloride compound
06/21/2012US20120157371 High penetration prodrug compositions of antimicrobials and antimicrobial-related compounds
06/20/2012CN102503958A Production process of dry cephalosporin C sodium salt
06/20/2012CN101982469B Method for removing bacterial endotoxins in cephalosporin antibiotics by utilizing macroporous adsorption resins
06/13/2012CN102491986A Method for preparing antibiotic cefathiamidine
06/13/2012CN101812075B Cefixime compound and novel preparation method thereof
06/13/2012CN101798312B Method for preparing cefprozil compound
06/13/2012CN101696215B Cefazolin sodium pentahydrate compound of new route
06/12/2012US8198434 Process for preparing cefsulodin sodium
06/06/2012CN102485727A Cefcapene pivoxil hydrochloride and method for preparing its intermediate
06/06/2012CN102079751B Method for preparing cefixime trihydrate
05/2012
05/30/2012EP2456775A1 Method of making cefquinome particles
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