.beta.-lactam compounds

Details .beta.-lactam compounds .beta.-lactam compounds

C - Chemistry, Metallurgy

07

D

260/299

C07D 498/04 (2006.01)

Patent

CA 1121360

ABSTRACT OF THE DISCLOSURE .beta.-LACTAM COMPOUNDS A process for the preparation of a compound of the formula (I): Image (I) wherein R1 is a CH2CH3 or CH2CH2CH3 group of a salt or ester thereof, which process comprises the reduction of an ester of a compound of the formula (II): Image (II) wherein R2 is a CH=CH2 or CH=CH-CH3 group and thereafter is desired converting the thus-formed ester of the compound of the formula (I) to the corresponding acid or a salt thereof. The compounds of of Formula (I) are used as in the preparation of pharmaceutical compounds of the formula (II).

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