Using COc1nc(Cl)cc(NCCc2ccc(Cl)cc2Cl)n1, O=C(O)C1CCCNC1 to produce COc1nc(NCCc2ccc(Cl)cc2Cl)cc(N2CCCC(C(=O)O)C2)n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.