InChI=1S/C22H27N3O3/c1-5-15-8-6-7-9-18(15)23-21(26)27-16-10-11-19-17(14-16)22(2)12-13-24(3)28-20(22)25(19)4/h6-11,14,20H,5,12-13H2,1-4H3,(H,23,26)/t20-,22-/m0/s1