Exploring 14390. To explore a different substance…

{1-[2-(1,3-Dioxo-1,3-dihydro-2H-isoindol-2-yl)ethyl]-4-[phenyl(propanoyl)amino]piperidin-4-yl}methyl 2,2-dimethylpropanoate
 14390  C30H37N3O5  519.632
 Fentanyl
 InChI=1S/C30H37N3O5/c1-5-25(34)33(22-11-7-6-8-12-22)30(21-38-28(37)29(2,3)4)15-17-31(18-16-30)19-20-32-26(35)23-13-9-10-14-24(23)27(32)36/h6-14H,5,15-21H2,1-4H3
 BIUKMFODELOTLP-UHFFFAOYSA-N This stereoisomer Any stereoisomer
 CCC(=O)N(C1(CCN(CC1)CCN1C(=O)c2c(C1=O)cccc2)COC(=O)C(C)(C)C)c1ccccc1