InChI=1/C15H23N3O3/c1-18(2)13-9-7-12(8-10-13)15(20)16-11-5-3-4-6-14(19)17-21/h7-10,21H,3-6,11H2,1-2H3,(H,16,20)(H,17,19)/f/h16-17H 7BE7B1B53F949B63