(3S,5R)-3-[1-methyl-1-(6-trifluoromethyl-pyridin-3-yl)-ethylamino]-1-(4-trifluoromethyl-phenyl)-5-(3-trifluoromethoxy-phenyl)-pyrrolidin-2-one 、
对甲苯磺酸 以80%的产率得到(3S,5R)-3-[1-methyl-1-(6-trifluoromethyl-pyridin-3-yl)-ethylamino]-1-(4-trifluoromethyl-phenyl)-5-(3-trifluoromethoxy-phenyl)-pyrrolidin-2-one tosylate