InChI=1S/C23H25NO6/c1-24-8-7-12-18-19(22(29-5)23(30-6)21(12)28-4)14-10-17(27-3)16(26-2)9-13(14)15(11-25)20(18)24/h9-11H,7-8H2,1-6H3