Using CN1C(=O)C(=O)c2c(Br)cccc21, Oc1ccc2c(c1)OCCO2 to produce CN1C(=O)C(O)(c2cc3c(cc2O)OCCO3)c2c(Br)cccc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.