InChI=1/C27H23N3O5/c31-22-15-17(23-9-4-12-34-23)14-20-25(22)26(24-10-5-13-35-24)30(21-8-2-1-7-19(21)29-20)27(32)28-16-18-6-3-11-33-18/h1-13,17,26,29H,14-16H2,(H,28,32)/t17-,26-/m1/s1/f/h28H 773B73FC93D81B3C