InChI=1S/C24H21NO5/c1-3-30-24(29)20-15(2)25-22(17-10-5-4-6-11-17)21(23(27)28)18(20)14-13-16-9-7-8-12-19(16)26/h4-12,18,25-26H,3H2,1-2H3,(H,27,28)