Exploring Isovaleroylfentanyl. To explore a different substance…

Isovaleroylfentanyl
3-Methyl-N-phenyl-N-[1-(2-phenylethyl)piperidin-4-yl]butanamide
 1676  C24H32N2O  364.524
 Fentanyl
 InChI=1S/C24H32N2O/c1-20(2)19-24(27)26(22-11-7-4-8-12-22)23-14-17-25(18-15-23)16-13-21-9-5-3-6-10-21/h3-12,20,23H,13-19H2,1-2H3
 HQXKBEMWVAZFPK-UHFFFAOYSA-N This stereoisomer Any stereoisomer
 CC(CC(=O)N(c1ccccc1)C1CCN(CC1)CCc1ccccc1)C