Using CC(C)CCC[C@H](C)NC(=O)Nc1nc2nccc(-c3ccc(O)cc3)n2n1, COCCBr to produce COCCOc1ccc(-c2ccnc3nc(NC(=O)N[C@@H](C)CCCC(C)C)nn23)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.