Using COc1ccc(C(=O)c2c(Cl)cc(Cl)cc2Cl)cc1Cc1ccc(=O)[nH]n1 to produce O=C(c1ccc(O)c(Cc2ccc(=O)[nH]n2)c1)c1c(Cl)cc(Cl)cc1Cl, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.