InChI=1S/C23H34O4/c1-15-6-8-17-16(2)7-9-18-22(3,4)19(10-12-23(17,18)5)27-21(25)14-20(24)26-13-11-15/h7,11,17-19H,6,8-10,12-14H2,1-5H3/b15-11-/t17-,18-,19+,23-/m1/s1