InChI=1S/C22H27N3O2/c1-16-7-5-10-18(13-16)15-24-21(26)20-11-6-12-25(20)22(27)19(23)14-17-8-3-2-4-9-17/h2-5,7-10,13,19-20H,6,11-12,14-15,23H2,1H3,(H,24,26)/t19-,20+/m1/s1