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