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Simple syntheses of 1,3-dialkylpyrrolo- and furopyrimidines.

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1985

Year

Abstract

Simple and efficient syntheses of 7-deazacaffeines, 9-deazatheophyllines, furo [2, 3-d] pyrimidines and furo [3, 2-d] pyrimidines from 5- or 6-substituted pyrimidines by means of intramolecular cyclization reactions are described.