112079-66-0

Basic information

• Product Name: (6R)-7-{[(2E)-2-(2-amino-1,3-thiazol-4-yl)-2-(methoxyimino)acetyl]amino}-8-oxo-3-[(1,2,3-thiadiazol-5-ylsulfanyl)methyl]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid
• CAS NO: 112079-66-0
• Molecular Formula: C₁₆H₁₅N₇O₅S₄
• Molecular Weight: 513.5942
• Mol File: 112079-66-0.mol

Chemical Properties

• Density: 1.977g/cm³
• Refractive Index: 1.924
• CAS DataBase Reference: (6R)-7-{[(2E)-2-(2-amino-1,3-thiazol-4-yl)-2-(methoxyimino)acetyl]amino}-8-oxo-3-[(1,2,3-thiadiazol-5-ylsulfanyl)methyl]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid(CAS DataBase Reference)
• NIST Chemistry Reference: (6R)-7-{[(2E)-2-(2-amino-1,3-thiazol-4-yl)-2-(methoxyimino)acetyl]amino}-8-oxo-3-[(1,2,3-thiadiazol-5-ylsulfanyl)methyl]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid(112079-66-0)
• EPA Substance Registry System: (6R)-7-{[(2E)-2-(2-amino-1,3-thiazol-4-yl)-2-(methoxyimino)acetyl]amino}-8-oxo-3-[(1,2,3-thiadiazol-5-ylsulfanyl)methyl]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid(112079-66-0)

Safety Data

• Hazardous Substances Data: 112079-66-0(Hazardous Substances Data)

Upstream product

• 101004-04-0 (6R,7R)-7-{2-(2-Amino-thiazol-4-yl)-2-[(Z)-methoxyimino]-acetylamino}-8-oxo-3-([1,2,3]thiadiazol-5-ylsulfanylmethyl)-5-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid 2,2-dimethyl-propionyloxymethyl ester 

Relevant articles and documents

NOVEL INTERMEDIATES FOR SYNTHESIS OF CEPHALOSPORINS AND PROCESS FOR PREPARATION OF SUCH INTERMEDIATES

A novel 4-halo-2-oxyimino-3-oxo butyric acid-N, N-dimethyl formiminium chloride chlorosulfate of formula (I) useful in the preparation of cephalosporin antibiotics, wherein X is chlorine or bromine; R is hydrogen, C1-4 alkyl group, an easily removable hydroxyl protective group, -CH2COOR5, or -C(CH3)2COOR5, wherein R5 is hydrogen or an easily hydrolysable ester group. The compound of formula (I) is prepared by reacting 4-halo-2-oxyimino-3-oxobutyric acid of formula (IV1), wherein X, R and R5 are as defined above, with N, N-dimethylformiminium chloride chlorosulphate of formula (VII), in an organic solvent at a temperature ranging from -30 °C to -15 °C. The cephalosporins that may be prepared from the intermediate include cefdinir, cefditoren pivoxil, cefepime, cefetamet pivoxil, cefixime, cefmenoxime, cefodizime, cefoselis, cefotaxime, cefpirome, cefpodoxime proxetil, cefquinome, ceftazidime, cefteram pivoxil, ceftiofur, ceftizoxime, ceftriaxone and cefuzonam.

7-Beta-[alpha-syn-methoxyimino-alpha-(2-aminothiazol-4-yl)-acetamido]-3-[(1,2,3-thiadiazol-5-ylthio)methyl]-3-cephem-4-carboxylic acid and C1 -C6 alkyl derivatives thereof

7-Beta-[alpha-syn-methoxyimino-alpha-(2-aminothiazol-4-yl)acetamido]-3-[(1,2,3-thiadiazol-5-ylthio)methyl]-3-cephem-4-carboxylic acid and C1 -C6 alkyl derivatives thereof, useful as antibacterial agents.