Using Cc1nnc(S)s1, CSC(C(=O)NC1C(=O)N2C(C(=O)O)=C(COC(C)=O)CS[C@H]12)c1ccco1 to produce CSC(C(=O)NC1C(=O)N2C(C(=O)O)=C(CSc3nnc(C)s3)CS[C@H]12)c1ccco1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.