InChI=1S/C18H24O3/c1-11-8-12(2)18(9-19)10-21-17(16(11)13(18)3)14-4-6-15(20)7-5-14/h4-8,12-13,16-17,19-20H,9-10H2,1-3H3/t12-,13-,16+,17+,18-/m0/s1