82394-68-1

Upstream product

• 61795-31-1 benzyl 2-amino-3,3-ethylenedioxybutanoate 
• 7487-88-9 magnesium sulfate 
• 2975-46-4 3-(trimethylsilyl)prop-2-yn-1-al 

Downstream Products

• 82443-05-8 (9S,9aS)-benzyl 9,9a-dihydro-9-(D-α-hydroxyphenylacetamido)-5-methyl-8-oxo-8H-azeto<1,2-a>-v-triazolo<5,1-c>pyrazine-6-carboxylate 
• 82394-94-3 (9R,9aR)-benzyl 9,9a-dihydro-9-(D-α-hydroxyphenylacetamido)-5-methyl-8-oxo-8H-azeto<1,2-a>-v-triazolo<5,1-c>pyrazine-6-carboxylate 
• 82394-96-5 (9RS,9aRS)-benzyl 9,9a-dihydro-5-methyl-8-oxo-9-phenoxyacetamido-8H-azeto<1,2-a>-v-triazolo<5,1-c>pyrazine-6-carboxylate 
• 82394-96-5 (9S,9aS)-benzyl 9,9a-dihydro-5-methyl-8-oxo-9-phenoxyacetamido-8H-azeto<1,2-a>-v-triazolo<5,1-c>pyrazine-6-carboxylate 
• 82443-07-0 (9S,9aS)-9,9a-dihydro-(D-α-hydroxyphenylacetamido)-5-methyl-8-oxo-8H-azeto<1,2-a>-v-triazolo<5,1-c>pyrazine-6-carboxylic acid 
• 82394-95-4 (9R,9aR)-9,9a-dihydro-(D-α-hydroxyphenylacetamido)-5-methyl-8-oxo-8H-azeto<1,2-a>-v-triazolo<5,1-c>pyrazine-6-carboxylic acid 
• 82443-08-1 (9S,9aS)-9,9a-dihydro-5-methyl-8-oxo-9-phenoxyacetamido-8H-azeto<1,2-a>-v-triazolo<5,1-c>pyrazine-6-carboxylic acid 
• 82394-91-0 (9RS,9aRS)-benzyl 9-amino-9,9a-dihydro-5-methyl-8-oxo-8H-azeto<1,2-a>-v-triazolo<5,1-c>pyrazine-6-carboxylate 
• 82443-06-9 (9S,9aS)-benzyl 9-amino-9,9a-dihydro-5-methyl-8-oxo-8H-azeto<1,2-a>-v-triazolo<5,1-c>pyrazine-6-carboxylate 
• 85090-80-8 (3RS,4SR)-1-(2-benzyloxycarbonyl-3-methyl-2H-azirin-2-yl)-3-phenoxyacetamido-4-ethynylazetidin-2-one 
• 82394-74-9 (3RS,4SR)-1-(1-benzyloxycarbonyl-2-methylsulphonyloxyprop-1-enyl)-4-ethynyl-3-phenoxyacetamidoazetidin-2-one 
• 82394-72-7 (3RS,4SR)-1-(1-benzyloxycarbonyl-2,2-ethylenedioxypropyl)-4-ethynyl-3-phenoxyacetamidoazetidin-2-one 
• 82394-73-8 E-(3RS,4SR)-1-(1-benzyloxycarbonyl-2-hydroxyprop-1-enyl)-4-ethynyl-3-phenoxyacetamidoazitidin-2-one 
• 82394-76-1 (9RS,9aRS)-9,9a-dihydro-5-methyl-8-oxo-9-phenoxyacetamido-8H-azeto<1,2-a>-v-triazolo<5,1-c>pyrazine-6-carboxylic acid 

Relevant academic research and scientific papers

Azeto triazolo pyrazine β-lactam antibacterial agents

A compound of formula (I) or a salt thereof: STR1 wherein R1 is an amino group, an azido group, or an acylamino group as found in antibacterially active penicillins or cephalosporins; R2 is a hydrogen atom or a C1-4 alkyl group; R3 is a hydrogen atom, or a C1-4 alkyl group optionally substituted by a carboxyl, carboxylic ester, hydroxy, C1-4 alkyloxy, acyloxy or heterocyclylthio group; and R4 is hydrogen or a readily removable carboxyl protecting group. The compounds wherein R1 is an acylamino group are found in known antibacterially active penicillins and cephalosporins and wherein R4 is a hydrogen, a pharmaceutically acceptable salting ion or an in vivo hydrolyzable ester forming radical may be formulated in pharmaceutical compositions. Processes for the preparation of the compound (I) are also described.