InChI=1S/C23H34O5/c1-2-3-4-5-6-10-13-21-19(15-16-22(21)26)12-9-7-8-11-14-23(27)28-20(17-24)18-25/h6-7,9-10,13,15-16,19-20,24-25H,2-5,8,11-12,14,17-18H2,1H3/b9-7-,10-6-,21-13+/t19-/m0/s1