InChI=1/C18H18N4O3/c1-18(12-5-6-12)16(24)22(17(25)21-18)10-15(23)20-14-4-2-3-11-9-19-8-7-13(11)14/h2-4,7-9,12H,5-6,10H2,1H3,(H,20,23)(H,21,25)/t18-/m1/s1/f/h20-21H 2AC46B1BEF89CCD4