Pivaloylfentanyl
2,2-Dimethyl-N-phenyl-N-[1-(2-phenylethyl)piperidin-4-yl]propanamide
 1673  C24H32N2O  364.524
 Fentanyl
 InChI=1S/C24H32N2O/c1-24(2,3)23(27)26(21-12-8-5-9-13-21)22-15-18-25(19-16-22)17-14-20-10-6-4-7-11-20/h4-13,22H,14-19H2,1-3H3
 ZSFLALBHNJDBFJ-UHFFFAOYSA-N This stereoisomer Any stereoisomer
 O=C(C(C)(C)C)N(c1ccccc1)C1CCN(CC1)CCc1ccccc1