Process for producing lactol-type cephalosporins

Details Process for producing lactol-type cephalosporins Process for producing lactol-type cephalosporins

C - Chemistry, Metallurgy

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C07D 513/14 (2006.01) A61K 31/545 (2006.01) C07D 501/04 (2006.01) C07D 501/16 (2006.01) C07D 501/26 (2006.01) C07D 501/60 (2006.01) C07D 515/14 (2006.01)

Patent

CA 1109860

Process for producing Lactol-type Cephalosporins Abstract A 3-hydroxymethylcephalosporin which is not protected at the carboxyl group can be directly oxidized with a hexa- valent chromium compound to give in good yield a lactol type cephalosporin represented by the general formula: Image wherein R1 is hydrogen or an alkoxy group and R2 is an acylamino, or imido group. The resulting compounds are very useful and important as intermediates for preparing, e.g. 3-alkoxyiminomethyl cephalosporins.

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