Derivatives of xanthine

C - Chemistry – Metallurgy – 07 – D

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260/242.4

C07D 473/06 (2006.01) C07D 473/08 (2006.01) C07D 473/10 (2006.01)

Patent

CA 1128040

ABSTRACT The present invention provides xanthine deriva- tives of the general formula:- Image wherein one of the symbols R1 and R2 stands for a methyl radical and the other for a radical of the general formula:- Image wherein R3 is a hydrogen atom or an acyl radical; and the pharmacologically acceptable salts thereof. The present invention also provides processes for the preparation of these compounds and pharmaceutical compositions containing them and is also concerned with the use thereof for the preparation of pharmaceutical compositions for the treatment of allergies.

352091

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