InChI=1/C14H17N3O4/c1-9-2-4-11(14(15)19)7-16(9)12-5-3-10(8-18)6-13(12)17(20)21/h3,5-6,8-9,11H,2,4,7H2,1H3,(H2,15,19)/t9-,11-/m1/s1/f/h15H2 0D1DA346DA12CA93