14780-21-3 4-(Dimethylamino)-2-isopropyl-2-(p-methoxyphenyl)butyramide BRN 2743529 BUTYRAMIDE, 4-(DIMETHYLAMINO)-2-ISOPROPYL-2-(p-METHOXYPHENYL)- alpha-Isopropyl-alpha-(2-dimethylaminoethyl)-p-methoxyphenylacetamide