878051-90-2Relevant academic research and scientific papers
Synthetic studies directed towards agelasine analogs - Synthesis, tautomerism, and alkylation of 2-substituted N-methoxy-9-methyl-9H-purin-6- amines
Roggen, Heidi,Gundersen, Lise-Lotte
experimental part, p. 5099 - 5106 (2009/06/06)
N-Methoxy-9-methyl-9H-purin-6-amines, carrying various substituents in the 2 positions, were synthesized by the N-methylation of known 6-chloropurines, followed by a displacement of the chlorine. Great variations in the amino/imino tautomer ratio among the compounds studied were observed. The tautomers were identified by NMR methods. Treatment of N-methoxy-9-methyl-9H-purin-6-amines carrying alkyl, alkoxy, or amino substituents in the 2 position with benzyl bromide resulted in a mixture of N-7- and N6-benzylated compounds with the former as the major products. N-Methoxy-9-methyl-9H-purin-6-amines with strongly electronegative substituents at C-2 hardly reacted at all under the same set of reaction conditions. Wiley-VCH Verlag GmbH & Co. KGaA, 2008.
2-SUBSTITUTED-6-TRIFLUOROMETHYL PURINE DERIVATIVES WITH ADENOSINE-A3 ANTAGONISTIC ACTIVITY
-
Page/Page column 7, (2008/06/13)
The present invention relates to 2-substituted-6-trifluoromethyl purine derivatives as selective adenosine antagonists, in particular adenosine-A3 receptor antagonists, to methods for the preparation of these compounds and to novel intermediates useful for the synthesis of said purine derivatives. The compounds have the general formula (1) wherein the symbols have the meanings given in the specification.
