申请人:Chekal P. Brian
公开号:US20060020022A1
公开(公告)日:2006-01-26
This invention relates to a method for separating enantiomers of a substituted 2-trifluoromethyl-2H-chromene-3-carboxylic acid or ester, a substituted 2-trifluoromethyl-1,2-dihydro-quinoline-3-carboxylic acid or ester, a substituted 2-trifluoromethyl-2H-thiochromene-3-carboxylic acid or ester, a substituted 3-trifluoromethyl-3,4-dihydro-naphthalene-2-carboxylic acid or ester, or a pharmaceutically acceptable salt of the acids or esters, using enantioselective fractional crystallization, enantioselective high performance liquid chromatography, enantioselective steady state recycling chromatography, or enantioselective multicolumn chromatography.
本发明涉及一种分离取代的2-三氟甲基-2H-色烯-3-羧酸或酯、取代的2-三氟甲基-1,2-二氢喹啉-3-羧酸或酯、取代的2-三氟甲基-2H-硫色烯-3-羧酸或酯、取代的3-三氟甲基-3,4-二氢萘-2-羧酸或酯、或药物可接受的盐的对映体分离方法,使用对映选择性分数结晶、对映选择性高效液相色谱、对映选择性稳态循环色谱或对映选择性多柱色谱。