InChI=1S/C17H28O4/c1-9-6-12(21-10(2)18)14-15(3,4)8-16(5)7-11(19)13(9)17(14,16)20/h9,11-14,19-20H,6-8H2,1-5H3/t9-,11+,12+,13-,14+,16+,17-/m1/s1