Using COC(=O)[C@@H](N)CNC(=O)OC(C)(C)C, BrCCCCBr to produce COC(=O)[C@H](CNC(=O)OC(C)(C)C)N1CCCC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.