Using O=C(Cl)C1(C(=O)Cl)CCCC1, COC(=O)COc1cccc(Cl)c1C to produce COC(=O)COc1cc2c(c(Cl)c1C)C(=O)C1(CCCC1)C2=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.