InChI=1S/C20H39NO4/c1-16-20(25-17(2)23)14-13-18(21-16)11-9-7-5-3-4-6-8-10-12-19(24)15-22/h16,18-22,24H,3-15H2,1-2H3/t16-,18+,19?,20-/m0/s1