Xanthine derivatives

Details Xanthine derivatives Xanthine derivatives

C - Chemistry, Metallurgy

07

D

260/242.4

C07D 473/06 (2006.01) C07D 239/545 (2006.01)

Patent

CA 1109470

A B S T R A C T The present invention provides a process for preparing novel antiallergic compounds of the formula Image (I) or a physiologically acceptable salt thereof, in which formula R1 is methyl, ethyl or n-propyl, R2 is methyl or n-propyl and R3 is a radical of the formula Image or Image .

313026

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