Using CSC(=N)c1cccs1, CN(CCO)CCCN1CCCc2cc(N)ccc21 to produce CN(CCO)CCCN1CCCc2cc(NC(=N)c3cccs3)ccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.