Central nervous system activity of new pyrimidine-8-on [2, 1-f] theophylline-9-alkylcarboxylic acids derivatives

O Fhid, M Pawlowski, B Filipek…

Index: Hesek; Tegza; Rybar; Povazanec Synthesis, 1989 , # 9 p. 681 - 683

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Citation Number: 4

Abstract

... cyclic systems derived from theophylline including synthetic procedures and structure determination [7–9, 13]. Only few of the synthesized compounds in the group of pyrimido- [2,1-f]theophylline ... 4]. Tetracyclic purine[7,8-g]6-azapteridines were acti- ve against P-388 leukemia ...