Ring transformation of 1,3,4-oxadiazole to s-triazole-fused heterocycles. New synthetic route for thiazolo[2,3-c]-s-triazole and 7H-s-triazolo[3,4-b][1,3,4]thiadiazine
Ring transformation of 1,3,4-oxadiazole to s-triazole-fused heterocycles. New synthetic route for thiazolo[2,3-c]-s-triazole and 7H-s-triazolo[3,4-b][1,3,4]thiadiazine