Synthesis and properties of 4a-substituted 6, 8-dimethylpyrimido-[5, 5-e][1, 2, 4]-triazine-3, 5, 7-triones

…, EL Pidemskii, AG Goloneva, GA Aleksandrova

Index: Azev, Yu. A.; Mudretsova, I. I.; Sidorov, E. O.; Pidemskii, E. L.; Goloneva, A. G.; Aleksandrova, G. A. Pharmaceutical Chemistry Journal, 1987 , vol. 21, # 7 p. 506 - 509 Khimiko-Farmatsevticheskii Zhurnal, 1987 , vol. 21, # 7 p. 829 - 833

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Abstract

In a study of the reaction of 3-fervenulone with indoie, it Was found that on heating the reactants in boiling butanol, 2, 3, 4, 4a, 5, 6, 7, 8-octahydro-4a-(3-indolyl)-6, 8- dimethylpyrimido [5, 4-e][l, 2, 4] triazine-3, 5, 7-trione (II) is formed. When catalyzed by acids, this reaction takes place in ethanol at ambient temperatures. The structure of (II) was confirmed by direct synthesis from the known 2, 3, 4, 4a, 5, 6, 7, 8-octahydro-4-hydroxy-Aa ...