Using COC(=O)c1ccc2c(c1NC(=O)OC(C)C)CCC2, CCOC(=O)CCCBr to produce CCOC(=O)CCCN(C(=O)OC(C)C)c1c(C(=O)OC)ccc2c1CCC2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.