Exploring Ethyl-4-ANPP. To explore a different substance…

Ethyl-4-ANPP
N-Ethyl-N-phenyl-1-(2-phenylethyl)piperidin-4-amine
 13298  C21H28N2  308.46
 Fentanyl
 InChI=1S/C21H28N2/c1-2-23(20-11-7-4-8-12-20)21-14-17-22(18-15-21)16-13-19-9-5-3-6-10-19/h3-12,21H,2,13-18H2,1H3
 XVQAKXNCXQMKEJ-UHFFFAOYSA-N This stereoisomer Any stereoisomer
 CCN(c1ccccc1)C1CCN(CC1)CCc1ccccc1