InChI=1S/C21H30O4/c1-12(22)21(25)9-6-16-14-11-18(24)17-10-13(23)4-7-19(17,2)15(14)5-8-20(16,21)3/h10,14-16,18,24-25H,4-9,11H2,1-3H3/t14-,15+,16+,18?,19-,20+,21+/m1/s1