InChI=1/C20H21N3O3/c24-9-8-21-20(26)17-11-15-14-6-1-2-7-16(14)22-19(15)18(23-17)12-4-3-5-13(25)10-12/h1-7,10,17-18,22-25H,8-9,11H2,(H,21,26)/t17-,18+/m1/s1/f/h21H F1789AE65B986416