InChI=1S/C21H31O3/c1-12(22)19-18(24)11-17-15-5-4-13-10-14(23)6-8-20(13,2)16(15)7-9-21(17,19)3/h4,14-19,24H,5-11H2,1-3H3/t14?,15-,16+,17+,18?,19?,20+,21+/m1/s1