Using Cc1ncn(-c2ccc([N+](=O)[O-])cc2O)n1, CC(CCCBr)NC(=O)OC(C)(C)C to produce Cc1ncn(-c2ccc([N+](=O)[O-])cc2OCCCC(C)NC(=O)OC(C)(C)C)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.