Using O=C(O)c1ccn2ncc(Br)c2c1, N#Cc1ccc(NC2COC2)nc1 to produce N#Cc1ccc(N(C(=O)c2ccn3ncc(Br)c3c2)C2COC2)nc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.