InChI=1/C15H18N2O3/c18-14(16-20)9-8-13-7-4-10-17(15(13)19)11-12-5-2-1-3-6-12/h1-3,5-7,20H,4,8-11H2,(H,16,18)/f/h16H 10DBD445723737A1