Process for preparing piperidylidene dihydro-...

Details Process for preparing piperidylidene dihydro-... Process for preparing piperidylidene dihydro-...

C - Chemistry, Metallurgy

07

D

260/201.1, 260/2

C07D 211/70 (2006.01) C07D 213/81 (2006.01) C07D 221/16 (2006.01) C07D 401/00 (2006.01) C07D 401/04 (2006.01)

Patent

CA 1272480

ABSTRACT Disclosed is an improved process for preparing unsubstituted or substituted dihydro-dibenzo[a,d]cyclo- heptenes, 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.

508985

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