Diphosphonic acid derivatives, process for their preparation...

Details Diphosphonic acid derivatives, process for their preparation... Diphosphonic acid derivatives, process for their preparation...

C - Chemistry, Metallurgy

07

F

260/501.1, 260/3

C07F 9/38 (2006.01) C07F 9/40 (2006.01) C07F 9/572 (2006.01) C07F 9/6503 (2006.01) C07F 9/655 (2006.01)

Patent

CA 1224459

ABSTRACT Diphosphonic acid derivatives, process for their preparation and pharmaceutical preparations containing them. The invention relates to diphosphonic acid derivatives of the general formula Image (I), in which R is hydrogen or (C1-C4)alkyl and A is the radical of an anti inflammatorily and anti-phlogistically active carboxylic acid, ACOOH, which contains an aryl or heteroaryl group, processes for their preparation and their use as anti- inflammatory and anti-arthritic agents.

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