Using Nc1cccc2c1C(=O)c1ccccc1C2=O, O=C1c2ccccc2C(=O)c2c(Cl)cccc21 to produce O=C1c2ccccc2C(=O)c2c(Nc3cccc4c3C(=O)c3ccccc3C4=O)cccc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.