InChI=1S/C21H30O3/c1-13(2)6-5-7-14(3)15-10-11-21(4)17(15)12-16-19(24-21)9-8-18(22)20(16)23/h6-7,15,17-18,22H,5,8-12H2,1-4H3/b14-7-