InChI=1/C15H21N3O3/c1-10(2)8-17(13-5-6-13)9-12-4-3-11(15(16)19)7-14(12)18(20)21/h3-4,7,10,13H,5-6,8-9H2,1-2H3,(H2,16,19)/f/h16H2 8EC5C81A09A8DCC5