InChI=1/C16H18N4O3/c1-9-8-10(2)18-16(17-9)20-19-15(21)14-11(3)22-12-6-4-5-7-13(12)23-14/h4-8,11,14H,1-3H3,(H,19,21)(H,17,18,20)/t11-,14-/m0/s1/f/h19-20H 9DE74AEF0637D569