InChI=1S/C24H21NO5/c1-2-30-24(29)20-18(14-13-16-9-5-3-6-10-16)21(23(27)28)22(25-19(20)15-26)17-11-7-4-8-12-17/h3-12,18,25-26H,2,15H2,1H3,(H,27,28)