33814-65-2

Upstream product

• 27124-39-6 (R)-3-methyl-2-((1S)-7-oxo-3-phenoxymethyl-(1rH,5cH)-4-thia-2,6-diaza-bicyclo[3.2.0]hept-2-en-6-yl)-but-3-enoic acid 2,2,2-trichloro-ethyl ester 
• 19474-21-6 trichloroethyl 6β-phenoxyacetamidopenicillanate-1β-sulfoxide 
• 19474-21-6 trichloroethyl ester of 6-phenoxyacetamido penicillinate sulfoxide 
• 623-51-8 ethyl 2-sulfanylacetate 
• 27032-26-4 3-methyl-2-((1S)-7-oxo-3-phenoxymethyl-(1rH,5cH)-4-thia-2,6-diaza-bicyclo[3.2.0]hept-2-en-6-yl)-but-2-enoic acid 2,2,2-trichloro-ethyl ester 

Relevant academic research and scientific papers

THE TRAPPING OF SULFENIC ACIDS FROM PENICILLIN SULFOXIDES. ETHYL 2-MERCAPTOACETATE

The thermolysis of trichloroethyl 6-phenoxyacetamido penicillanate sulfoxide and ethyl 2-mercaptoacetate in toluene gave the unsym-azetidinone disulfide (β,γ-isomer) in 65percent yield.With added catalytic amounts of N,N-dimethylaniline the α,β-isomer was