Using CCNCCO, CCOP(=O)(OCC)OC(C)(C)C#Cc1ccc2c(-c3ccc(Br)cc3)nsc2c1 to produce CCN(CCO)C(C)(C)C#Cc1ccc2c(-c3ccc(Br)cc3)nsc2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.