InChI=1S/C25H36O4/c1-7-15(3)21-19(10-8-9-16(4)22(26)17(5)24(27)28)18-12-11-14(2)13-20(18)23-25(21,6)29-23/h7-11,17-23,26H,12-13H2,1-6H3,(H,27,28)/b10-8-,15-7+,16-9+/t17-,18+,19+,20-,21+,22-,23+,25-/m1/s1