Using COC(=O)C1CN(Cc2cccnc2)C(=O)C(=C2SC=CS2)C1=O to produce O=C1CCN(Cc2cccnc2)C(=O)C1=C1SC=CS1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.