InChI=1S/C16H21N3O3/c17-13(16(21)22)6-3-4-8-18-15(20)9-11-10-19-14-7-2-1-5-12(11)14/h1-2,5,7,10,13,19H,3-4,6,8-9,17H2,(H,18,20)(H,21,22)