Patent ID: 6624201
Filing Date: 2003-09-23
Classification: A61P,C07B,C07C

Abstract:
(1R,2S,4R)-(âˆ’)-2-[(2â€²-{N,N-dimethylamino}-ethoxy)]-2-[phenyl]-1,7,7-tri-[methyl]-bicyclo [2.2.1] heptane of Formula or a pharmaceutically acceptable acid addition salt thereof,wherein the compound contains not more than 0.2% of (1R,3S,4R)-3-[(2â€²-{N,N-dimethylamino}-ethyl)]-1,7,7-tri-[methyl]-bicyclo [2.2.1] heptane-2-one of Formula or of a pharmaceutically acceptable acid addition salt thereof, andwherein the compound is essentially free of dimethyl formamide.