Using CC(Br)Cn1cccc1, CCCc1nc2c(N)nc3cc(OC(C)=O)ccc3c2s1 to produce CCCc1nc2c(N)nc3cc(OCCCn4cccc4)ccc3c2s1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.