InChI=1/C15H17N3O4/c1-9-8-12(11(3)22-9)10(2)16-15(19)17-13-6-4-5-7-14(13)18(20)21/h4-8,10H,1-3H3,(H2,16,17,19)/t10-/m1/s1/f/h16-17H 81203B7E3CA364BA