InChI=1/C21H22O3/c1-2-3-9-21-10-8-17(23)19(18-5-4-11-24-18)20(21)16-7-6-15(22)12-14(16)13-21/h4-7,11-12,22H,2-3,8-10,13H2,1H3/t21-/m0/s1 98A39EAEF36EA9DE