InChI=1/C16H19N3O4/c1-16(2)9-12(8-14(20)10-16)17-18-15(21)7-11-3-5-13(6-4-11)19(22)23/h3-6,8,17H,7,9-10H2,1-2H3,(H,18,21)/f/h18H FA8C49D5024E46B1