Drug – bio-affecting and body treating compositions – Antigen – epitope – or other immunospecific immunoeffector – Bacterium or component thereof or substance produced by said...
Patent
1979-10-30
1981-11-10
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...
544267, C07D47308
Patent
active
042998328
ABSTRACT:
The substituted theophyllines of the formula: ##STR1## (wherein R.sup.1, R.sup.2 and R.sup.3, which may be the same or different, each represent alkyl of 1 to 6 carbon atoms, cycloalkyl of 3 to 7 carbon atoms, phenyl or phenylalkyl of 7 to 10 carbon atoms, each of which may be unsubstituted or substituted by one or more hydroxy groups, alkoxy or alkylthio groups of 1 to 4 carbon atoms, halogen atoms, cyano groups, nitro groups, carboxy groups, alkoxycarbonyl groups of 2 to 5 carbon atoms, amino groups, alkylamino groups of 1 to 4 carbon atoms or dialkylamino groups of 2 to 8 carbon atoms, or when the group is phenyl or phenylalkyl, by one or more alkyl groups of 1 to 4 carbon atoms;
REFERENCES:
patent: 3317533 (1967-05-01), DeRidder et al.
patent: 3632742 (1972-01-01), Eckert
Brown Rodney A.
Brown Roger C.
O'Connor Stephen E.
Fisons Limited
Rizzo Nicholas S.
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