PRODUCTION OF PYPERIDILIDENE HYDRODIBENZO(A, D) CYCLOHEPTENES AND AZA DERIVATIVES THEREOF, COMPOUND OBTAINEDAND PHARMACEUTICAL COMPOSITION CONTAINING THE SAME

摘要

Disclosed is an improved process for preparing unsubstituted or substituted dihydro-dibenzo[a,d]cycloheptenes, azaderivatives thereof and the pharmaceutically acceptable salts of such compounds. A narrow group of compounds which possess antihistaminic properties with substantially no sedative properties and which are obtainable by the claimed process is also claimed.