5-(3,4-Dimethoxyphenethylmethylamino)-2-isopropyl-2-(4-hydroxy-3-methoxyphenyl)pentanenitrile

2-(3-Methoxy-4-hydroxyphenyl)-5-[(3,4-dimethoxyphenethyl)methylamino]-2-isopropylvaleronitrile

2-(3-Methoxy-4-hydroxyphenyl)-2-isopropyl-5-(N-methyl-3,4-dimethoxyphenethylamino)valeronitrile

2-(4-Hydroxy-3-methoxyphenyl)-2-isopropyl-5-[methyl[2-(3,4-dimethoxyphenyl)ethyl]amino]pentanenitrile