InChI=1S/C29H26N2O5/c1-18-25(30-28(34)35-19(2)20-6-4-3-5-7-20)26(36-31-18)23-10-8-21(9-11-23)22-12-14-24(15-13-22)29(16-17-29)27(32)33/h3-15,19H,16-17H2,1-2H3,(H,30,34)(H,32,33)/t19-/m1/s1