COc1ncnc2c1cnn2C    mol4953    0_1
COc1[nH+]cnc2c1cnn2C    mol4953    1_1
COc1ncnc2c1c[nH+]n2C    mol4953    1_2
COc1nc[nH+]c2c1cnn2C    mol4953    1_3