InChI=1S/C24H34O4/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-21(26)24-22(27)18-20(25)19-23(24)28/h3-4,6-7,9-10,18-19,25,27-28H,2,5,8,11-17H2,1H3/b4-3-,7-6-,10-9-