InChI=1S/C24H28O7/c1-23(2,28)8-6-13-18-16(10-14(25)22(13)29-5)30-17-11-15-12(7-9-24(3,4)31-15)20(26)19(17)21(18)27/h10-11,25-26,28H,6-9H2,1-5H3