InChI=1S/C26H34O4/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-23(28)26-24(29)20-22(27)21-25(26)30/h3-4,6-7,9-10,12-13,15-16,20-21,27,29-30H,2,5,8,11,14,17-19H2,1H3/b4-3-,7-6-,10-9-,13-12-,16-15-