61375-83-5

Upstream product

• 29707-62-8 6-(phenoxyacetamido)penicillanate sulfoxide p-nitrobenzyl ester 

Downstream Products

• 61375-82-4 (6R)-3-methylene-5ξ,8-dioxo-7t-(2-phenoxy-acetylamino)-(6rH)-5λ⁴-thia-1-aza-bicyclo[4.2.0]octane-2c-carboxylic acid 4-nitro-benzyl ester 
• 1538-75-6 2,2-dimethylpropanoic anhydride 
• 80523-30-4 N-((5R,6R)-2-Acetyl-7-oxo-4-thia-1-aza-bicyclo[3.2.0]hept-6-yl)-2-phenoxy-acetamide 
• 80523-32-6 (7R,8R)-8-((R)-2-Amino-2-phenyl-acetylamino)-3-methyl-9-oxo-4-oxa-6-thia-1-aza-bicyclo[5.2.0]non-2-ene-2-carboxylic acid 
• 80536-34-1 (7R,8R)-3-Methyl-9-oxo-8-(2-phenoxy-acetylamino)-4,6-dithia-1-aza-bicyclo[5.2.0]non-2-ene-2-carboxylic acid 
• 80523-31-5 (7R,8R)-8-Amino-3-methyl-9-oxo-4-oxa-6-thia-1-aza-bicyclo[5.2.0]non-2-ene-2-carboxylic acid 4-nitro-benzyl ester 
• 80523-26-8 (R)-2-[(2R,3R)-2-Chloromethylsulfanyl-4-oxo-3-(2-phenoxy-acetylamino)-azetidin-1-yl]-3-methyl-but-3-enoic acid 4-nitro-benzyl ester 
• 80523-29-1 (5R,6R)-2-Acetyl-7-oxo-6-(2-phenoxy-acetylamino)-4-thia-1-aza-bicyclo[3.2.0]heptane-2-carboxylic acid 4-nitro-benzyl ester 
• 80534-15-2 (7R,8R)-3-Methyl-9-oxo-8-(2-phenoxy-acetylamino)-4-oxa-6-thia-1-aza-bicyclo[5.2.0]non-2-ene-2-carboxylic acid 4-nitro-benzyl ester 
• 80536-33-0 (7R,8R)-3-Methyl-9-oxo-8-(2-phenoxy-acetylamino)-4,6-dithia-1-aza-bicyclo[5.2.0]non-2-ene-2-carboxylic acid 4-nitro-benzyl ester 
• 80523-25-7 2-[(2R,3R)-2-Chloromethylsulfanyl-4-oxo-3-(2-phenoxy-acetylamino)-azetidin-1-yl]-3-methyl-but-2-enoic acid 4-nitro-benzyl ester 
• 80523-27-9 (Z)-2-[(2R,3R)-2-Chloromethylsulfanyl-4-oxo-3-(2-phenoxy-acetylamino)-azetidin-1-yl]-3-hydroxy-but-2-enoic acid 4-nitro-benzyl ester 
• 80523-28-0 (Z)-3-Hydroxy-2-[(2R,3R)-2-iodomethylsulfanyl-4-oxo-3-(2-phenoxy-acetylamino)-azetidin-1-yl]-but-2-enoic acid 4-nitro-benzyl ester 
• 81946-89-6 (Z)-3-Hydroxy-2-[(2R,3R)-2-methoxymethylsulfanyl-4-oxo-3-(2-phenoxy-acetylamino)-azetidin-1-yl]-but-2-enoic acid 4-nitro-benzyl ester 

Relevant academic research and scientific papers

Use of a novel reagent in the synthesis of 3-exomethylenecephams

An improved synthesis of 3-exomethylene cephams, employing the use of ZnCl2-Et2O complex has been described.

New Functionalized Monocyclic beta-Lactams Suitable Precursors for Anhydro 2-Azacephams

The anhydro 2-azacephams 9 were prepared starting from penicillanate sulphoxides 1 via 4-aminosulphinyl-2-oxoazetidines 3 and 4-aminosulphonyl-2-oxoazetidines 6 and 8.New functionalized monocyclic beta-lactams 5 and 7 were also produced as precursors for