Using Cc1c(N2CCN(Cc3c(Cl)cccc3Cl)CC2)ccc2oc(C(=O)O)cc12, C1COCCN1 to produce Cc1c(N2CCN(Cc3c(Cl)cccc3Cl)CC2)ccc2oc(C(=O)N3CCOCC3)cc12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.