InChI=1S/C23H31N5O4/c1-15(2)11-18(22(30)31)26-23(32)28-10-9-27(13-19-16(3)24-14-25-19)21(29)20(28)12-17-7-5-4-6-8-17/h4-8,14-15,18,20H,9-13H2,1-3H3,(H,24,25)(H,26,32)(H,30,31)/t18-,20+/m0/s1