EXTRACTION OF TRAMADOL FROM NAUCLEA LATIFOLIA SMITH

摘要

The present invention concerns a process for obtaining (±)-cis-2-dimethylaminomethyl-1-(3-methoxyphenyl)- cyclohexanol comprising the following steps: a) extraction from roots of Nauclea Latifolia with an appropriate solvent, leading to a crude residue, and b) purification of said crude residue to obtain a purified residue containing (±)-cis-2-dimethylaminomethyl-1-(3-methoxyphenyl)cyclohexanol.