InChI=1/C26H28N2O4/c1-17-22(25(30)32-14-13-31-19-7-5-4-6-8-19)23(18-9-11-27-12-10-18)24-20(28-17)15-26(2,3)16-21(24)29/h4-12,23-24H,13-16H2,1-3H3/t23-,24-/m0/s1 5CE1CBDBF8F261B7