InChI=1S/C24H38N4O4/c1-15(2)19(27-23(32)25-17-6-3-4-7-17)22(31)28-13-10-18(26-21(30)16-8-9-16)20(28)24(14-29)11-5-12-24/h14-20H,3-13H2,1-2H3,(H,26,30)(H2,25,27,32)/t18-,19-,20-/m0/s1