InChI=1S/C16H28O4/c1-10(9-12(3)15(18)19)8-11(2)14-6-7-16(5,20-14)13(4)17/h8,10,12-14,17H,6-7,9H2,1-5H3,(H,18,19)/b11-8+/t10?,12?,13?,14-,16-/m0/s1