Using c1cc2cccc3c4cccc5cccc(c(c1)c23)c54, ClCC(CCl)OC(CCl)CCl to produce O=Cc1ccc2c3cccc4cccc(c5cccc1c52)c43, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.