Using CCCCCCCCCCCCCCCCC(C(=O)O)c1ccccc1, O=C(Cl)c1ccccc1 to produce CCCCCCCCCCCCCCCCC(C(=O)O)(C(=O)c1ccccc1)c1ccccc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.