InChI=1/C18H24N4O4/c1-26-18(25)21-10-5-6-13(12-21)19-17(24)20-15-9-11-22(16(15)23)14-7-3-2-4-8-14/h2-4,7-8,13,15H,5-6,9-12H2,1H3,(H2,19,20,24)/t13-,15-/m1/s1/f/h19-20H 389C9F6F342F7C47