Drug – bio-affecting and body treating compositions – Antigen – epitope – or other immunospecific immunoeffector – Bacterium or component thereof or substance produced by said...
Patent
1978-05-09
1979-10-30
Rizzo, Nicholas S.
Drug, bio-affecting and body treating compositions
Antigen, epitope, or other immunospecific immunoeffector
Bacterium or component thereof or substance produced by said...
544276, 544277, C07D47302
Patent
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).
Naito Takayuki
Nakagawa Susumu
Okita Taka-aki
Yamasaki Tetsuro
Yamashita Haruhiro
Bristol-Myers Company
Morse David M.
Rizzo Nicholas S.
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