Exploring 2,3-Secofentanyl. To explore a different substance…

2,3-Secofentanyl
N-{4-[Methyl(2-phenylethyl)amino]butan-2-yl}-N-phenylpropanamide
 1677  C22H30N2O  338.486
 Fentanyl
 InChI=1S/C22H30N2O/c1-4-22(25)24(21-13-9-6-10-14-21)19(2)15-17-23(3)18-16-20-11-7-5-8-12-20/h5-14,19H,4,15-18H2,1-3H3
 TVSLDWMMAUJGPV-UHFFFAOYSA-N This stereoisomer Any stereoisomer
 CCC(=O)N(c1ccccc1)C(CCN(CCc1ccccc1)C)C