Using COC(=O)CCc1cccc(CN)c1, O=Cc1ccc(-n2cccn2)cc1 to produce COC(=O)CCc1cccc(CNCc2ccc(-n3cccn3)cc2)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.