Studies on annelated 1,4-benzothiazines and 1,5-benzothiazepines. IV. Synthesis and biological activity of new 1-substituted derivatives of 4H-2-triazolo[3,4-c]-1,4-benzothiazine and 4,5-dihydro-s-triazolo[3,4-d]-1,5-benzothiazepine

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