InChI=1/C16H26N2O3/c19-15(20)8-11-4-3-7-18(10-11)16(21)14-9-12-5-1-2-6-13(12)17-14/h11-14,17H,1-10H2,(H,19,20)/t11-,12+,13+,14-/m1/s1/f/h17H A3ADD45EDE562598