Using CCOC(=O)c1c(OC)c2n(c1Br)CCN(C)C2=O, COC(=O)c1cnccn1 to produce CCOC(=O)c1c(OC)c2n(c1C(=O)c1cnccn1)CCN(C)C2=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.