Xanthine derivatives with adenosine-antagonistic activity

Organic compounds -- part of the class 532-570 series – Organic compounds – Chalcogen bonded directly to ring carbon of the purine ring...

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544268, 544269, 544271, 544273, C07D47304

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active

055323685

ABSTRACT:
Xanthines of the formula I ##STR1## wherein R.sub.1 is a C.sub.1 -C.sub.4 alkyl group:

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Chemical Abstracts, 109., No. 122899q.
Chemical Abstracts, 108, No. 94512s.
Chemical Abstracts, 107, No. 259u.
Chemical Abstracts, 106, No. 149315w.
Chemical Abstracts, 88, No. 152567.

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