InChI=1/C13H19N3O3/c17-12(15-11-7-9-14-10-8-11)5-3-1-2-4-6-13(18)16-19/h7-10,19H,1-6H2,(H,16,18)(H,14,15,17)/f/h15-16H 9177633FE7EE1816