InChI=1S/C20H28O5/c1-18-7-12(22)15-14(16-17(24-15)25-16)11(18)4-5-19-6-10(2-3-13(18)19)20(23,8-19)9-21/h10-13,16-17,21-23H,2-9H2,1H3/t10?,11?,12?,13?,16?,17?,18-,19+,20+/m1/s1