InChI=1S/C20H24O3/c1-2-15(14-10-6-5-7-11-14)18-19(21)16-12-8-3-4-9-13-17(16)23-20(18)22/h5-7,10-11,15,21H,2-4,8-9,12-13H2,1H3/t15-/m0/s1