Using OCCC(c1ccccc1)c1ccccc1, COc1cccc2c(CCl)coc12 to produce COc1cccc2c(COCCC(c3ccccc3)c3ccccc3)coc12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.