Condensed Purines, I Synthesis of 6, 7??Dihydro??1, 3??dimethylpyrimido [2, 1??f] purine??2, 4, 8 (1H, 3H, 9H)??triones

V Kalcheva, D Stoyanova…

Index: Kalcheva, Veneta; Stoyanova, Diana; Simova, Svetlana Liebigs Annalen der Chemie, 1989 , p. 1251 - 1254

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Citation Number: 3

Abstract

Abstract The title compounds 2a–d and 4a–d are the sole products of the reaction between 8- aminotheophylline (1) or 8-(benzylamino) theophylline (3) and methyl acrylate, crotonate, methacrylate, and cinnamate in the presence of basic catalysts (Triton B or KOH). The structures of the compounds were determined by elemental analysis, spectral data, chemical transformations, and synthesis.