Using Nc1c(Cl)cccc1Cl, CO/C=C(/C=C/C(=O)OC)C(=O)OC to produce COC(=O)/C=C/C(=C/Nc1c(Cl)cccc1Cl)C(=O)OC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.