Exploring 3,3-Dimethylfentanyl. To explore a different substance…

3,3-Dimethylfentanyl
N-[3,3-Dimethyl-1-(2-phenylethyl)piperidin-4-yl]-N-phenylpropanamide
 1606  C24H32N2O  364.524
 Fentanyl
 InChI=1S/C24H32N2O/c1-4-23(27)26(21-13-9-6-10-14-21)22-16-18-25(19-24(22,2)3)17-15-20-11-7-5-8-12-20/h5-14,22H,4,15-19H2,1-3H3
 NEBDAIASWHLNNP-UHFFFAOYSA-N This stereoisomer Any stereoisomer
 CCC(=O)N(C1CCN(CC1(C)C)CCc1ccccc1)c1ccccc1