Penicillins

Details Penicillins Penicillins

C - Chemistry, Metallurgy

07

D

260/116

C07D 499/12 (2006.01) C07D 499/00 (2006.01) C07D 499/64 (2006.01)

Patent

CA 1056817

ABSTRACT OF THE DISCLOSURE A class of novel .beta.-amino penicillins of formula (IV) useful as antibacterial agents: Image (IV) and non-toxic salts and hydrolysable esters thereof, in which formula R is a C1 to C6 straight or branched chain alkyl group, a C5 to C7 cycloalkyl or cyclo- alkenyl group; R1 is hydrogen or a C1 to C6 alkyl group; or R and R1 taken to- gether represent a C5 to C6 alkylene group which may be interrupted by a hetero atom. According to the process of preparation 6-aminopenicillanic acid or a salt or ester thereof or the reaction product of 6-aminopenicillanic acid with an organo silicon compound is treated with a reactive acylating derivative of an acid of the general formula (V) Image (V) wherein R and R1 are as defined in claim 1 and X is a nitrogen containing group which may be converted into a primary amino group, and subsequently converting the group X into a primary amino group.

123557

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