InChI=1/C15H29N3O3/c1-21-11-7-3-6-10-16-15(20)17-12-14(19)18-13-8-4-2-5-9-13/h13H,2-12H2,1H3,(H,18,19)(H2,16,17,20)/f/h16-18H 8E4B35B3CA5E0665