New heterocyclic ring systems. XI. Azadithiasteroid analogues

…, F Schiaffella, C Brunelli, V Cecchetti

Index: Fravolini; Schiaffella; Brunelli; Cecchetti Journal of Heterocyclic Chemistry, 1980 , vol. 17, # 1 p. 125 - 128

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Citation Number: 7

Abstract

Abstract Synthesis of the title compounds has been achieved starting from 4-oxo-3, 4- dihydro-2H, 5H-thiopyrano [3, 2-c][1] benzothiopyran 6, 6-dioxide (III), which was converted to glyoxylate (IV), β-ketoester (V), difluoride complex (VII) and β-diketone (XII) gave with hydrazine, hydroxyl-amine and glycine ethyl ester several azadithiasteroid analogues.