InChI=1S/C24H38O4/c1-14(7-8-20(27)28)22-19(26)13-17-21-16(9-11-24(17,22)3)23(2)10-5-4-6-15(23)12-18(21)25/h14-17,19,21-22,26H,4-13H2,1-3H3,(H,27,28)/t14?,15?,16?,17?,19?,21?,22?,23-,24-/m0/s1