Using CCOC(=O)C(=O)OCC, CCOC(=O)c1c(OC)c2n(c1Br)[C@@H](C)CN(CC)C2=O to produce CCOC(=O)C(=O)c1c(C(=O)OCC)c(OC)c2n1[C@@H](C)CN(CC)C2=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.