InChI=1S/C21H30O3/c1-13(23)17-5-6-19-16-4-3-14-11-15(24)7-9-20(14,2)18(16)8-10-21(17,19)12-22/h3,16-19,22H,4-12H2,1-2H3/t16?,17?,18?,19?,20-,21-/m0/s1