Penicillin derivatives and process for preparing the same

Details Penicillin derivatives and process for preparing the same Penicillin derivatives and process for preparing the same

C - Chemistry, Metallurgy

07

D

260/111, 167/188

C07D 499/00 (2006.01) A61K 31/43 (2006.01)

Patent

CA 1239392

PENICILLIN DERIVATIVES AND PROCESS FOR PREPARING THE SAME ABSTRACT OF THE DISCLOSURE: This invention provides a penicillin derivative of the formula Image wherein R1 and R2 are the same or different and represent hydrogen, C1-6 alkyl, C1-6 hydroxyalkyl, C3-9 acyloxy- alkyl, C8-13 benzyloxyalkyl, C2-7 alkoxyalkyl, C2-7 alkoxycarbonyl, C3-8 alkenyloxycarbonyl, C3-8 alkynyloxy- carbonyl, phenyl, amino, cyano, formyl, trifluoromethyl, C2-6 acyl, carbamoyl, C2-7 alkylcarbamoyl, benzyloxy carbonylamino, C2-7 alkoxycarbonylamino; and R3 is hydrogen, a group for forming a pharmaceutically acceptable salt, or a penicillin carboxyl protecting group, with the proviso that both of R1 and R2 are not hydrogen or C2-7 alkoxycarbonyl at the same time and that when one of R1 and R2 is hydrogen, the other is not C2-7 alkoxycarbonyl, or a pharmaceutically acceptable acid addition salt, process for preparing the derivative, and a pharmaceutical composition containing the derivative.

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