The synthesis of 3-(dimethylamino) methyl-5H, 11H-pyrrolo [2, 1-c][1, 4] benzothiazepine derivatives 2a-c, which might show significant central nervous system (CNS) activity, is described. The basic side chain was introduced by a Mannich condensation with the preformed heterocyclic systems 1a-c. Synthesis of novel 5-phenyl-5H, 11H-pyrrolo [2, 1-c][1, 4] benzothiazepine 1c by a nucleophilic aromatic fluoride displacement-cyclization and an ...