Oxadiazole-alkyl-purine derivatives

C - Chemistry – Metallurgy – 07 – D

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C07D 473/06 (2006.01) A61K 31/52 (2006.01)

Patent

CA 1288432

A B S T R A C T The invention relates to new oxadiazole-alkyl-purine- derivatives of the general Formula I Image and pharmaceutically acceptable salts thereof (wherein A stands for C1-4 alkylene and R1 represents C1-6 alkyl, hydroxyalkyl, halogenoalkyl, carboxyalkyl, C5-6 cycloalkyl or aminoalkyl of the general Formula -(CH2)n-NR2R3 in which group n is an integral 1-3; R2 and R3 each stand for hydrogen or C1-4 alkyl or together with the adjacent nitrogen atom they are attached to form a 5- or 6-membered nitrogen containing heterocyclic ring which may optionally comprise a further nitrogen atom or an oxygen atom as heteroatom; or R1 stands for phenyl, hydroxyphenyl, carboxyphenyl, benzyl or dimethoxybenzyl The compounds of the general Formula I can be prepared by methods known per se and can be used in therapy as antitussive agents.

548853

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