Cc1nc2cnc(=N)nc-2n(C)c1C mol4778 0_1 Cc1[nH+]c2cnc(=N)nc-2n(C)c1C mol4778 1_1 Cc1nc2cnc(=[NH2+])nc-2n(C)c1C mol4778 1_2 Cc1nc2cnc(=N)[nH+]c-2n(C)c1C mol4778 1_3 Cc1nc2c[nH+]c(=N)nc-2n(C)c1C mol4778 1_4