Purine derivatives

Details Purine derivatives Purine derivatives

C - Chemistry, Metallurgy

07

D

260/242.3

C07D 473/40 (2006.01)

Patent

CA 1109872

Pharmaceutical Compounds Abstract of the Disclosure Purine derivatives of the formula Image wherein R is C1-C6 alkyl and R1 is Image or Image and their pharmaceutically acceptable acid addition salts are non-adrenergic bronchodilators. This divisional specification relates particularly to an intermediate compound for the production of these compounds, namely Image II

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