Using O=C(Nc1cccnc1O)OCc1ccccc1, CC(C)(C)OC(=O)CBr to produce CC(C)(C)OC(=O)Cn1cccc(NC(=O)OCc2ccccc2)c1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.