Using CCCCCCCCCCCCNS(=O)(=O)c1ccc(CN)s1, O=C1CCCC1 to produce CCCCCCCCCCCCNS(=O)(=O)c1ccc(CNC2CCCC2)s1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.