Process for 3-iodomethyl cephalosporins

Details Process for 3-iodomethyl cephalosporins Process for 3-iodomethyl cephalosporins

C - Chemistry, Metallurgy

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C07D 501/24 (2006.01) A61K 31/545 (2006.01) C07D 501/00 (2006.01) C07D 501/04 (2006.01) C07D 501/14 (2006.01) C07D 501/22 (2006.01) C07D 501/36 (2006.01) C07D 501/57 (2006.01) C07D 501/60 (2006.01) C07F 7/18 (2006.01)

Patent

CA 1147322

X-5203 Abstract A process for preparing 3-iodomethyl cephalo- sporins wherein a 3-alkanoyloxymethyl or 3-carbamoyloxy- methyl cephalosporin is reacted with a trialkylsilyl iodide, e.g. trimethylsilyl iodide. Certain cephalo- sporin esters, e.g., benzhydryl esters; undergo cleavage and cephalosporin sulfoxides are reduced to the sulfide form in the process. The 3-iodomethyl cephalosporins are useful intermediates for antibiotics.

370551

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