HIGH PURITY (1R, 2S, 4R)-(-)-2-/(2'-/N,N-DIMETHYLAMINO/-ETHOXY)/-2-/PHENYL/-1,7,7-TRI-/METHYL/BICYCLO/2.2.1/ HEPTANE AND PHARMACEUTICALLY ACCEPTABLE ACID ADDITION SALTS THEREOF AND PROCESS FOR THE PREPARATION OF THESE COMPOUNDS AS WELL MEDICAMENTS CONTAINING ONE OR MORE OF THEM AND THE USE THEREOF

摘要

The invention relates to a process for preparing (1R,2S,4R)-(-)-2-Ä(2'-äN,N-dimethylaminoü-ethoxy)Ü-2--ÄphenylÜ-1,7,7-t ri-ÄmethylÜ-bicycloÄ2.2.1Üheptane and pharmaceutically acceptable acid addition salts thereof with higher yields and higher grades of purity.