Using COC(=O)CC(=O)O, O=C(Cc1ccc(Cl)c(Cl)c1)N1CCNC2CCCC(N3CCCC3)C21 to produce O=C(O)CC(=O)N1CCN(C(=O)Cc2ccc(Cl)c(Cl)c2)C2C(N3CCCC3)CCCC21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.