InChI=1/C28H36N2O4/c1-18(2)34-22-14-10-20(11-15-22)25(31)23-24(19-8-12-21(13-9-19)28(3,4)5)30(17-16-29(6)7)27(33)26(23)32/h8-15,18,24,32H,16-17H2,1-7H3/t24-/m1/s1/f/h32h,29H 293286663A643E29