InChI=1S/C25H32O7/c1-6-14(2)22(27)31-21(24(4)19(26)7-8-20-25(24,5)32-20)11-15(3)17-12-18(30-23(17)28)16-9-10-29-13-16/h6,9-10,13,15,17-18,20-21H,7-8,11-12H2,1-5H3/b14-6+/t15-,17-,18-,20-,21-,24-,25-/m1/s1