Using CSc1cccc(N)c1, Cc1cc(Nc2ccccc2)c2c(ccc3nc[nH]c32)n1 to produce CSc1cccc(Nc2cc(C)nc3ccc4nc[nH]c4c23)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.