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