InChI=1/C13H15N3O4/c17-13-7-20-12-5-11(16(18)19)9(4-10(12)15-13)14-6-8-2-1-3-8/h4-5,8,14H,1-3,6-7H2,(H,15,17)/f/h15H CA5B346122B2B9CB