Synthesis of purine??like ring systems derived from 1, 2, 6??thiadiazine 1, 1??dioxide

G García??Muñoz, R Madroñero…

Index: Garcia-Munoz,G. et al. Journal of Heterocyclic Chemistry, 1976 , vol. 13, p. 793 - 796

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Citation Number: 18

Abstract

Abstract 7-Amino-1H, 4H-imidazo [2, 3-c][1, 2, 6] thiadiazine 5, 5-dioxide was prepared by a multi-step reaction sequence form 3, 5-diamino-4H-1, 2, 6-thiadiazine 1, 1-dioxide. 7-Amino- 4H-furazano-[3, 4-c][1, 2, 6] thiadiazine 5, 5-dioxide was obtained by lead tetraacetate oxidation of 3, 5-diamino-4-hydroxyimino-4H-1, 2, 6-thiadiazine 1, 1-dioxide.

$4-hydroxy-4-oxo-4$l^{6}-thia-3,5,7,9-tetrazabicyclo[4.3.0]nona-2,4,6,8-tetraen-2-amine Structure$

$4-hydroxy-4-oxo-4$l^{6}-thia-3,5,7,9-tetrazabicyclo[4.3.0]nona-2,4,6,8-tetraen-2-amine Structure$