2-methyl-4-(4-trifluoromethylbenzofuran-7-yl)-1,2,3,6-tetrahydropyridine 生成 2-methyl-4-(4-trifluoromethylbenzofuran-7-yl)-1,2,3,6-tetrahydropyridine hydrochloride 、 2-methyl-4-(4-trifluoromethylbenzofuran-7-yl)-1,2,3,6-tetrahydropyridine hydrochloride