Using C1COCCN1, Nc1c(Cl)cc(C(=CC(=O)O)c2ccc(Br)cc2)cc1Cl to produce Nc1c(Cl)cc(C(=CC(=O)N2CCOCC2)c2ccc(Br)cc2)cc1Cl, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.