CNc1ncnc2c1cnn2C    mol4958    0_1
CNc1[nH+]cnc2c1cnn2C    mol4958    1_1
C[NH2+]c1ncnc2c1cnn2C    mol4958    1_2
CNc1nc[nH+]c2c1cnn2C    mol4958    1_3
CNc1ncnc2c1c[nH+]n2C    mol4958    1_4