摘要 |
<p>Carboline derivatives of the formula: …<CHEM>… where X is H, F, Cl or Br, Z is H, F, Cl or -OCH3, and R is …<CHEM>… where Y is H, CH3, F or Cl, and their use in preparing tranquilizing agents of the formula: …<CHEM>… wherein X, Z and R are as defined above.</p> |