InChI=1/C16H18N4O2/c1-4-7-19-8-5-13-11(15(19)21)10-12-14(17-13)6-9-20(16(12)22)18(2)3/h5-6,8-10H,4,7H2,1-3H3 EEAF3B76757B3649