InChI=1/C26H26N2O3/c1-18-10-6-7-13-22(18)25(20-11-4-3-5-12-20)31-17-21(29)16-28-26(30)24-15-9-8-14-23(24)19(2)27-28/h3-15,21,25,29H,16-17H2,1-2H3/t21-,25+/m0/s1 FD17CA97F5A8C525