InChI=1S/C23H28O5/c1-16(12-13-22(24)25)8-6-9-17(2)14-20-21(28-20)15-18(3)10-7-11-19(4)23(26)27-5/h6-15,20-21H,1-5H3,(H,24,25)/b9-6+,10-7+,13-12+,16-8+,17-14+,18-15+,19-11+