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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 A PROCESS FOR THE PREPARATION OF THESE COMPOUNDS AS WELL AS MEDICAMENTS CONTAINING 1 OR MORE OF THESE COMPOUNDS AND THEIR USE

US Patent 6624201 · Granted Sep 23, 2003

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