Using CCCCN, O=C(c1ccc2c(c1)Cc1c([nH]c(=S)[nH]c1=O)O2)c1ncc[nH]1 to produce CCCCNC(=O)c1ccc2c(c1)Cc1c([nH]c(=S)[nH]c1=O)O2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.