64278-77-9

Basic information

• Product Name: (6R-cis)-7-methoxy-3-<<(1-methyl-1-H-tetrazol-5-yl)thio>methyl>-8-oxo<(phenylacetyl)amino>-5-thia-1-azabicyclo<4.2.0>oct-2-ene-2-carboxylic acid diphenylmethyl ester
• Synonyms: (6R-cis)-7-methoxy-3-<<(1-methyl-1-H-tetrazol-5-yl)thio>methyl>-8-oxo<(phenylacetyl)amino>-5-thia-1-azabicyclo<4.2.0>oct-2-ene-2-carboxylic acid diphenylmethyl ester
• CAS NO: 64278-77-9
• Molecular Weight: 642.759
• Mol File: 64278-77-9.mol
• Article Data: 2

Chemical Properties

• CAS DataBase Reference: (6R-cis)-7-methoxy-3-<<(1-methyl-1-H-tetrazol-5-yl)thio>methyl>-8-oxo<(phenylacetyl)amino>-5-thia-1-azabicyclo<4.2.0>oct-2-ene-2-carboxylic acid diphenylmethyl ester(CAS DataBase Reference)
• NIST Chemistry Reference: (6R-cis)-7-methoxy-3-<<(1-methyl-1-H-tetrazol-5-yl)thio>methyl>-8-oxo<(phenylacetyl)amino>-5-thia-1-azabicyclo<4.2.0>oct-2-ene-2-carboxylic acid diphenylmethyl ester(64278-77-9)
• EPA Substance Registry System: (6R-cis)-7-methoxy-3-<<(1-methyl-1-H-tetrazol-5-yl)thio>methyl>-8-oxo<(phenylacetyl)amino>-5-thia-1-azabicyclo<4.2.0>oct-2-ene-2-carboxylic acid diphenylmethyl ester(64278-77-9)

Safety Data

• Hazardous Substances Data: 64278-77-9(Hazardous Substances Data)

Upstream product

• 957-68-6 7-Aminocephalosporanic acid 
• 865-34-9 lithium methanolate 
• 67366-01-2 (6R,7R)-benzhydryl-3-((1-methyl-1H-tetrazol-5-ylthio)methyl)-8-oxo-7-(2-phenylacetamido)-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate 
• 24209-38-9 (6R,7R)-7-amino-3-[(1H-1-methyltetrazol-5-yl)thio]methylceph-3-em-4-carboxylic acid 
• 47653-82-7 (6R,7R)-3-((1-methyl-1H-tetrazol-5-ylthio)methyl)-8-oxo-7-(2-phenylacetamido)-5-thia-1-aza-bicyclo [4.2.0]oct-2-ene-2-carboxylic acid 
• 68474-81-7 C₃₁H₂₈N₆O₅S₂ 
• 67-56-1 methanol 
• 73711-24-7 7-(4-nitrobenzalimino)-3-(1-methyl-1H-tetrazol-5-yl)thiomethyl-Δ³-cephem-4-carboxylic acid diphenylmethyl ester 
• 64278-66-6 (6R,7R)-3-(1-Methyl-1H-tetrazol-5-ylsulfanylmethyl)-8-oxo-7-p-tolylsulfanylamino-5-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid benzhydryl ester 
• 64278-67-7 (6R)-7-<<(4-methylphenyl)thio>imino>-3-<<(1-methyl-1H-tetrazol-5-yl)thio>methyl>-8-oxo-5-thia-1-azabicyclo<4.2.0>oct-2-ene-2-carboxylic acid diphenylmethyl ester 
• 64278-73-5 (6R-cis)-7-amino-7-<(4-methylphenyl)thio>-3-<<(1-methyl-1H-tetrazol-5-yl)thio>methyl>-8-oxo-5-thia-1-azabicyclo<4.2.0>oct-2-ene-2-carboxylic acid diphenylmethyl ester 
• 67366-04-5 (6R-cis)-7-amino-3-<<(1-methyl-1H-tetrazol-5-yl)thio>methyl>-7-(methylthio)-8-oxo-5-thia-1-azabicyclo<4.2.0>oct-2-ene-2-carboxylic acid diphenylmethyl ester 
• 64278-70-2 (6R)-3-<<(1-methyl-1H-tetrazol-5-yl)thio>methyl>-7-(methylthioimino)-8-oxo-5-thia-1-azabicyclo<4.2.0>oct-2-ene-2-carboxylic acid diphenylmethyl ester 
• 103-80-0 phenylacetyl chloride 

Downstream Products

• 56610-72-1 diphenylmethyl (6R,7S)-7-amino-7-methoxy-3-<<(1-methyl-1H-tetrazol-5-yl)thio>methyl>-Δ³-cephem-4-carboxylate 
• 73707-48-9 (6R,7S)-7-Methoxy-3-(1-methyl-1H-tetrazol-5-ylsulfanylmethyl)-8-oxo-7-phenylacetylamino-5-thia-1-aza-bicyclo[4.2.0]oct-3-ene-2-carboxylic acid benzhydryl ester 

Relevant articles and documents

Synthesis method of methoxy cephalosporin drug intermediate 7-MAC

The invention provides a synthesis method of a methoxy cephalosporin drug intermediate 7alpha-methoxy-7beta-amino-3-(1-methyl-1H-tetrazole-5-methylthio)-3-cephem-4-diphenylmethyl carboxylate (7-MAC). The synthesis method comprises steps as follows: 7-aminocephalosporanic acid (7-ACA) is taken as a raw material, a side chain at a C-3 site and amino at a C-7beta site are modified firstly, oxidative rearrangement and reduction are performed after protection of diphenylmethyl at a C-4 site, a methoxy group is selectively introduced to a C-7alpha site, an amino protecting group is removed finally, and 7-MAC is obtained through 7-step reaction. According to the synthesis method of the methoxy cephalosporin drug intermediate 7-MAC, the defects that byproducts such as methyl mercaptan and the like are required to be removed while the methoxy group is introduced in the existing synthesis technology are overcome. Meanwhile, the synthesis method of the methoxy cephalosporin drug intermediate7-MAC does not adopt diazo compounds, and accordingly, danger such as explosion possibly caused by the diazo compounds is eliminated.