Using NOCC(=O)O, NC1C(=O)N2C3=C(CSC12)C(O)OC3=O to produce NC1C(=O)N2C(C(=O)O)=C(C=NOCC(=O)O)CS[C@H]12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.