Cephalosporin esters and ethers

Details Cephalosporin esters and ethers Cephalosporin esters and ethers

C - Chemistry, Metallurgy

07

D

260/104.1

C07D 501/36 (2006.01) A61K 31/545 (2006.01) C07D 501/46 (2006.01) C07D 501/56 (2006.01)

Patent

CA 1151641

abstract Process for the manufacture of antibiotically active, readily hydrolys- able esters and ethers of compounds of the general formula (I) Image wherein R represents furyl, R1 represents lower alkyl and X represents a group of the formula Image or Image ? Image (a) (b1) (b2) in which R3 and R4 represent lower alkyl, which process comprises reacting a car- boxylic acid or enol of formula I with a lower alkanoyloxyalkyl halide.

331646

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