InChI=1/C16H17N3O4/c1-9-4-10(2)14(11(3)5-9)8-18-7-12(19(22)23)6-13(15(17)20)16(18)21/h4-7H,8H2,1-3H3,(H2,17,20)/f/h17H2 8CC3EC2D8DE32AAE