InChI=1/C15H23N3O3/c19-12(10-11-6-2-3-7-11)17-18-13(20)15(16-14(18)21)8-4-1-5-9-15/h11H,1-10H2,(H,16,21)(H,17,19)/f/h16-17H 292D8346CBEE2DFA