InChI=1/C14H17N3O3/c1-8-5-6-9(12(18)15-8)13(19)16-11-7-10(20-17-11)14(2,3)4/h5-7H,1-4H3,(H,15,18)(H,16,17,19)/f/h15-16H E43B7892BE43128E