InChI=1S/C23H28O5/c1-16(10-8-11-17(2)13-14-21(24)25)9-6-7-12-18(3)22-20(28-22)15-19(4)23(26)27-5/h6-15,20,22H,1-5H3,(H,24,25)/b7-6+,10-8+,14-13+,16-9+,17-11+,18-12+,19-15+