InChI=1/C15H22N2O3/c1-10(2)11(3)16-15(18)17-12-5-6-13-14(9-12)20-8-4-7-19-13/h5-6,9-11H,4,7-8H2,1-3H3,(H2,16,17,18)/t11-/m1/s1/f/h16-17H F3F45CF817058470