InChI=1S/C21H30O3/c1-4-13-18(23)11-16-12-5-6-15-19(24)17(22)8-10-21(15,3)14(12)7-9-20(13,16)2/h4,6,12,14,16-17,19,22,24H,5,7-11H2,1-3H3/b13-4-/t12-,14+,16+,17+,19-,20-,21-/m1/s1