InChI=1/C16H21N3O3/c1-10(2)8-9-18-16(21)19-14-13(17-3)11-6-4-5-7-12(11)22-15(14)20/h4-7,10,17H,8-9H2,1-3H3,(H2,18,19,21)/f/h18-19H C2FB6AFEC8C5D37D