Using CC(C)(C)OC(=O)NCCBr, Cn1nccc1-c1cc(N)ccc1O to produce Cn1nccc1-c1cc(N)ccc1OCCNC(=O)OC(C)(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.