Exploring β-Hydroxy-thiofentanyl. To explore a different substance…

β-Hydroxy-thiofentanyl
N-{1-[2-Hydroxy-2-(thiophen-2-yl)ethyl]piperidin-4-yl}-N-phenylpropanamide
 3179  C20H26N2O2S  358.498
 Fentanyl
 InChI=1S/C20H26N2O2S/c1-2-20(24)22(16-7-4-3-5-8-16)17-10-12-21(13-11-17)15-18(23)19-9-6-14-25-19/h3-9,14,17-18,23H,2,10-13,15H2,1H3
 GLAAETOTOUGGSB-UHFFFAOYSA-N This stereoisomer Any stereoisomer
 CCC(=O)N(c1ccccc1)C1CCN(CC1)CC(c1cccs1)O