InChI=1S/C24H28O7/c1-12(2)6-7-13-15(25)10-18-20(21(13)27)22(28)19-14(8-9-24(3,4)29)23(30-5)16(26)11-17(19)31-18/h6,10-11,25-27,29H,7-9H2,1-5H3