Using O=I(=O)Cl, COC(=O)c1nc(-c2ccco2)c(Cl)c(Cl)c1Cl to produce COC(=O)c1nc(-c2ccc(Cl)o2)c(Cl)c(Cl)c1Cl, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.