Using Cn1c(=O)oc2ccc(-c3cncc(C=O)c3)cc21, NCc1ccccc1 to produce Cn1c(=O)oc2ccc(-c3cncc(CNCc4ccccc4)c3)cc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.