InChI=1S/C17H24O4/c1-9(2)15-13(19)8-12-6-7-14(21-11(4)18)10(3)17(12,5)16(15)20/h8,10,14,16,20H,6-7H2,1-5H3/t10-,14+,16-,17+/m0/s1