Using O=C([O-])[O-], O=C(Nc1nccs1)C(CC1CCCC1)c1ccc(S)nc1 to produce CSc1ccc(C(CC2CCCC2)C(=O)Nc2nccs2)cn1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.