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Downstream Products

• 83377-67-7 3-Chloromethyl-2-(7-oxo-3-phenoxymethyl-4-thia-2,6-diaza-bicyclo[3.2.0]hept-2-en-6-yl)-but-3-enoic acid methyl ester 
• 80465-27-6 3-Methyl-2-((1R,5R)-3-methyl-7-oxo-4-thia-2,6-diaza-bicyclo[3.2.0]hept-6-yl)-but-3-enoic acid methyl ester 
• 58599-21-6 3-Methyl-2-((1R,5R)-7-oxo-3-phenoxymethyl-4-thia-2,6-diaza-bicyclo[3.2.0]hept-6-yl)-but-3-enoic acid methyl ester 

Relevant academic research and scientific papers

Thiazoleneazetidinones from dithiazeneazetidinones

An improved process for preparing 4-thia-2,6-diazabicyclo[3,2,0]hept-2-ene-7-ones such as methyl 3-phenoxy-4-thia-2,6-diazabicyclo[3,2,0]hept-2-ene-7-one-6-isopropenylacetate which comprises extruding sulfur from dithiazeneazetidinones such as methyl 3-phenoxymethyl-4,5-dithia-2,7-diazabicyclo[4,2,0]-oct-2-ene-8-one-7-isopropenylacetate. The compounds obtained are useful intermediates in the preparation of certain 3-cephems.