Using COC(=O)NCCCN(CCN(C)C(=O)OC(C)(C)C)c1cccc(Cl)c1 to produce CNCCN(CCCNC(=O)OC)c1cccc(Cl)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.