Process for the manufacture of enol derivatives

Details Process for the manufacture of enol derivatives Process for the manufacture of enol derivatives

C - Chemistry, Metallurgy

07

D

260/101.5

C07D 501/20 (2006.01) C07D 205/095 (2006.01)

Patent

CA 1059988

Process for the Manufacture of Enol Derivatives Abstract of the Disclosure 7.beta.-amino-3-cephem-3-ol-4-carboxylic acid compounds of the formula Image (IA) wherein R? represents an acyl group, R2 represents hydroxyl or a radical R? which together with the carbonyl grouping -C(=O)- forms a protected carboxyl group and R3 represents hydrogen, lower alkyl, phenyl-lower alkyl, diphenyl-lower alkyl or tri-lower alkyl silyl, and the corresponding 2-cephem compounds are prepared in that a compound of the formula,

220745

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