InChI=1/C16H17N3O2/c1-8(20)17-10-7-5-6-9-11(10)14(21)12-13(9)18-19-15(12)16(2,3)4/h5-7H,1-4H3,(H,17,20)(H,18,19)/f/h17-18H EBB4B59ECF6F1A4F