37787-58-9

Upstream product

• 140647-35-4 (6R,7R)-3-Iodomethyl-8-oxo-7-(2-phenoxy-acetylamino)-5-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid methyl ester 
• 24652-74-2 methyl 6-phenoxyacetamidopenicillanate-1β-oxide 
• 186581-53-3 diazomethane 
• 40849-60-3 7-Phenoxyacetamido-3-exo-methylene cepham 

Downstream Products

• 37787-60-3 (6R)-3-methyl-5t,8-dioxo-7t-(2-phenoxy-acetylamino)-(6rH)-5λ⁴-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid methyl ester 
• 37787-62-5 methyl-7β-phenoxyacetamido-3-methyl-3-cephem-4-carboxylate 1R-(α)-oxide 
• 37787-59-0 (6R)-3-methylene-5t,8-dioxo-7t-(2-phenoxy-acetylamino)-(6rH)-5λ⁴-thia-1-aza-bicyclo[4.2.0]octane-2c-carboxylic acid methyl ester 
• 37787-61-4 (6R)-3-methylene-5c,8-dioxo-7t-(2-phenoxy-acetylamino)-(6rH)-5λ⁴-thia-1-aza-bicyclo[4.2.0]octane-2c-carboxylic acid methyl ester 

Relevant academic research and scientific papers

Samarium Diiodide Mediated Reduction of Allyl Halides. A New Reductive Approach to Exomethylene Cephams.

A new method for the synthesis of exomethylene cepham based on the use of samarium diiodide is described.The reaction proved to be chemo-, regio-, and stereo-selective affording the exomethylene cephams possessing the natural configuration at C-4 in high