InChI=1/C15H25N3O2/c1-3-5-9-18(10-11-19)15(20)14-12-13(6-8-17-14)16-7-4-2/h6,8,12,19H,3-5,7,9-11H2,1-2H3,(H,16,17)/f/h16H 931C7BEAAC8A248B