4-[[(2R,4R,5S)-2,5-dimethyl-1-prop-2-enylpiperidin-4-yl]-phenylamino]-N,N-diethylbenzamide
4-[[(2R,4R,5S)-1-allyl-2,5-dimethyl-4-piperidyl]-phenyl-amino]-N,N-diethyl-benzamide
4-[[(2R,4R,5S)-1-allyl-2,5-dimethyl-4-piperidinyl]-phenylamino]-N,N-diethylbenzamide
4-[[(2R,4R,5S)-2,5-dimethyl-1-prop-2-enyl-piperidin-4-yl]-phenyl-amino]-N,N-diethyl-benzamide