InChI=1/C15H27N3O3/c1-3-15(13(19)20)7-4-8-18(11-15)14(21)16-12-5-9-17(2)10-6-12/h12H,3-11H2,1-2H3,(H,16,21)(H,19,20)/t15-/m0/s1/f/h16-17H 92CE2503AC98A82F