InChI=1S/C22H31N5O4/c23-20(24)16-8-6-14(7-9-16)12-26-21(30)17-10-11-27(17)22(31)19(25-13-18(28)29)15-4-2-1-3-5-15/h6-9,15,17,19,25H,1-5,10-13H2,(H3,23,24)(H,26,30)(H,28,29)/t17-,19+/m0/s1