Exploring 4391. To explore a different substance…

tert-Butyl 5-(dipropylcarbamoyl)imidazo[1,5-a]quinoline-3-carboxylate
 4391  C23H29N3O3  395.495
 InChI=1S/C23H29N3O3/c1-6-12-25(13-7-2)21(27)17-14-19-20(22(28)29-23(3,4)5)24-15-26(19)18-11-9-8-10-16(17)18/h8-11,14-15H,6-7,12-13H2,1-5H3
 QCFPBAGRTZUDBJ-UHFFFAOYSA-N This stereoisomer Any stereoisomer
 CCCN(C(=O)c1cc2c(ncn2c2c1cccc2)C(=O)OC(C)(C)C)CCC