Using O=C(O)c1csc(-c2cnc(-c3ccccc3)nc2)n1, COCCCN to produce COCCCNC(=O)c1csc(-c2cnc(-c3ccccc3)nc2)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.