Using Clc1nc2ccccc2s1, COc1cc2c(N)nc(N3CCNCC3)nc2c(OC)c1OC to produce COc1cc2c(N)nc(N3CCN(c4nc5ccccc5s4)CC3)nc2c(OC)c1OC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.