Using CCN1CCOCC1, Cn1ccc2c(Nc3cccc(Cl)c3)ncc(C(=O)O)c21 to produce Cn1ccc2c(Nc3cccc(Cl)c3)ncc(C(=O)N3CCOCC3)c21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.