InChI=1/C17H23N3O2/c1-6-13-8-15(16(21)19-12(13)4)18-9-14-7-10(2)11(3)20-17(14)22-5/h7-8,18H,6,9H2,1-5H3,(H,19,21)/f/h19H EE55AC44AD7A502B