InChI=1S/C25H34O3/c1-19(10-7-8-11-21(3)18-26)12-9-13-20(2)14-15-23(28)25(6)17-22(27)16-24(25,4)5/h7-15,18,22,27H,16-17H2,1-6H3/b8-7+,12-9+,15-14+,19-10+,20-13+,21-11+/t22-,25-/m0/s1