Using OCc1ccc(-c2noc(-c3ccc(-c4ccccc4)c(Cl)c3)n2)cc1 to produce O=Cc1ccc(-c2noc(-c3ccc(-c4ccccc4)c(Cl)c3)n2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.