InChI=1/C15H27N3O3/c1-2-6-17-7-9-18(10-8-17)15(21)16-13-5-3-4-12(11-13)14(19)20/h12-13H,2-11H2,1H3,(H,16,21)(H,19,20)/t12-,13-/m1/s1/f/h16-17H ED04BE74BDC23E37