InChI=1/C13H16N2O2/c16-9-11-3-5-13(6-4-11)17-7-1-2-12-8-14-10-15-12/h3-6,8,10,16H,1-2,7,9H2,(H,14,15)/f/h15H 6F5AF9E227B5238A