InChI=1S/C21H30O4/c1-11(22)19-17(25)10-15-18-14(5-7-21(15,19)3)20(2)6-4-13(23)8-12(20)9-16(18)24/h9,14-19,24-25H,4-8,10H2,1-3H3/t14?,15?,16?,17?,18?,19?,20-,21-/m0/s1