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, 260/4

C07F 9/38 (2006.01) C07F 9/40 (2006.01) C07F 9/6553 (2006.01)

Patent

CA 1202635

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 n is 0.1 or 2, R1 is hydrogen or (C1-4) alkyl, R2 is hydrogen or (C1-4) alkyl, and Ar is optionally substituted phenyl, biphenyl, naphthyl or thienyl, processes for their preparation and their use as anti-inflammatory and anti-arthritic agents.

420239

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