2-(2-ethylpiperidin-1-yl)-1-thiophen-2-ylethanone 2-(2-ethyl-1-piperidyl)-1-(2-thienyl)ethanone 2-(2-ethyl-1-piperidinyl)-1-(2-thienyl)ethanone 2-(2-ethylpiperidin-1-yl)-1-thiophen-2-yl-ethanone T0517-4127