Using CCOC(=O)c1ccc(NC(C)CO)c(Cl)c1, CC(C)(C)OC(=O)CBr to produce CCOC(=O)c1ccc(NC(C)COCC(=O)OC(C)(C)C)c(Cl)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.