| 摘要 |
1-[2-(4,5,10,11-Tetrahydro-1H-dibenzo[a,d]cyclohepten-5-yl)ethyl]pyrro lidine of the formula <IMAGE> I and its pharmaceutically acceptable acid addition salts, prepared through various intermediates, are described. The compounds have valuable histamine-H1 antagonistic properties and are suitable for the control or prevention of allergic reactions, such as, urticaria, hay fever, anaphylaxis and over-sensitivity to medicaments. |
