Xanthine derivatives

Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Heterocyclic carbon compounds containing a hetero ring...

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Details

514265, 544118, 544273, 544267, 544272, 544276, C07D47306

Patent

active

049607731

ABSTRACT:
The present invention relates to new compounds of Formula I ##STR1## and physiologically acceptable salts thereof wherein A and B stand for oxygen or --CH.sub.2 group with the proviso that if A stands for oxygen, then B stands for --CH.sub.2 group and R stands for hydrogen and, if A represents a --CH.sub.2 group, then B stands for oxygen, R stands for a --CH.sub.2 Q group wherein Q stands for hydrogen, and pyrrolidino, piperidino or morpholino and a process for the preparation thereof and pharmaceutical compositions containing as active ingredient a compound of the Formula (I) or a physiologically acceptable salt thereof.

REFERENCES:
patent: 4565817 (1986-01-01), Korbonits et al.
patent: 4840949 (1989-06-01), Korbonits et al.

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