InChI=1S/C16H28O3/c1-13(10-7-11-16(3,4)19-5)8-6-9-14(2)12-15(17)18/h6,9,12-13H,7-8,10-11H2,1-5H3,(H,17,18)/b9-6+,14-12+/t13-/m1/s1