3-alkylxanthines, intermediates, processes for their...

Details 3-alkylxanthines, intermediates, processes for their... 3-alkylxanthines, intermediates, processes for their...

C - Chemistry, Metallurgy

07

D

260/242.4

C07D 473/04 (2006.01) C07D 239/545 (2006.01) C07D 473/06 (2006.01)

Patent

CA 1131632

Abstract Compounds having activity against chronic obstructive air- way disease or cardiac disease, characterized by the formula Image wherein R1 is n-propyl, n-butyl, isobutyl, n-pentyl, 2-methylbutyl, 3-methylbutyl, 2,2-dimethylpropyl, cyclo- propyl, cyclobutyl, cyclopentyl or cyclohexylmethyl, and R2 is hydrogen or methyl, provided that R2 is methyl when is n-propyl, n-butyl or isobutyl, or a physiologically acceptable salt thereof.

337077

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