InChI=1S/C23H32O7/c1-12(10-21(5,26)19-14(3)16(27-8)9-17(24)28-19)18(25)13(2)11-22(6)20-23(7,30-20)15(4)29-22/h9-11,15,18,20,25-26H,1-8H3/b12-10+,13-11+/t15-,18?,20+,21+,22+,23-/m1/s1