CC(=O)N1CCN(C(C)=O)c2c(C)ncnc21    mol4752    0_1
CC(=O)N1CCN(C(C)=O)c2c1nc[nH+]c2C    mol4752    1_1
CC(=O)N1CCN(C(C)=O)c2c(C)nc[nH+]c21    mol4752    1_2