InChI=1S/C25H34O6/c1-14(2)11-20(27)30-10-8-18-22-19(12-15(3)26)31-23(28)21(22)16-13-25(18,6)9-7-17(16)24(4,5)29/h8,10-11,16-19,29H,7,9,12-13H2,1-6H3