2,9-Disubstituted adenine derivatives and their use as non-adren

Drug – bio-affecting and body treating compositions – Antigen – epitope – or other immunospecific immunoeffector – Bacterium or component thereof or substance produced by said...

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544276, 544277, C07D47302

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active

041728297

ABSTRACT:
Purine derivatives of the formula ##STR1## wherein R is C.sub.1 -C.sub.6 alkyl and R.sub.1 is ##STR2## OR ##STR3## AND THEIR PHARMACEUTICALLY ACCEPTABLE ACID ADDITION SALTS ARE NON-ADRENERGIC BRONCHODILATORS.

REFERENCES:
patent: 3917837 (1975-11-01), Lin et al.
patent: 3930005 (1975-12-01), Wojnar et al.
Farmdoc 70719y (Belgian Patent 853,086).
JACS 81, 197-201 (1959).
Farmdoc 53190y (Japanese Patent 52-71492).
Chem. Pharm. Bull. 23(4), 759-774 (1975).
Chem. Pharm. Bull. 25(7), 1811-1821 (1977).

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