121534-47-2

Upstream product

• 121534-46-1 benzyl 2-<(3S,2R)-2-acetonylsulphonyl-3-chloro-4-oxo-acetidin-1-yl>glyoxylate 
• 100-39-0 benzyl bromide 
• 20097-86-3 6-chloropenicillanic acid 
• 145757-83-1 7α-chloro-3-methyl-1,1-dioxoceph-3-em-4-carboxylic acid sulfone chloride 
• 100-51-6 benzyl alcohol 
• 96542-82-4 benzyl (3S,5R,6S)-6-chloropenicillanate 
• 121534-45-0 benzyl 2<(2R,3S)-2-acetonylsulphonyl-3-chloro-4-oxoazetidin-1-yl>-2-methylbut-2-enoate 
• 121534-43-8 benzyl (3S,5R,6S)-6-chloropenicillanate 1,1-dioxide 
• 121534-44-9 benzyl 2-<(3S,4R)-3-chloro-2-oxo-4-sulphinoazetidin-1-yl>-2-methylbut-2-enoate 

Relevant academic research and scientific papers

Synthesis and anticancer properties of 7α-chloro-3-methyl-1,1- dioxoceph-3-em-4-carboxylic acid esters

The tert-butyl esters of 3-azidomethyl-, 3-isocyanatomethyl-, 3-chloromethyl-, and 3-p-nitrophenylvinyl-7α-chloro-1,1-dioxoceph-3-em-4- carboxylic acid, and also esters of 7α-chloro-3-methyl-1,1-dioxoceph-3-em- 4-carboxylic acid, and of 7α-chloro-3-methyl

STUDIES RELATED TO PENICILLINS. PART 27. A STRATEGY FOR THE CONVERSION OF 1,1-DIOXIDES OF PENICILLANATES INTO 1,1-DIOXIDES OF 3-METHYLCEPH-3-EM-4-CARBOXYLATES

Methodology for the conversion of benzyl (3S,5R)-penicillinate 1,1-dioxide (2b) into (6R)-4-benzyloxycarbonyl-3-methylceph-3-em 1,1-dioxide (3b) has been devised.In the process, the 3,4-double bond of the product was constructed by a reductive carbonyl-ca