InChI=1/C15H27N3O3/c1-17(2)13-7-9-18(10-8-13)15(21)16-12-5-3-11(4-6-12)14(19)20/h11-13H,3-10H2,1-2H3,(H,16,21)(H,19,20)/f/h16-17H 3D533FEB71EB295D