Using O=C1NC(=S)SC1=Cc1ccc2c(c1)OCO2, NCc1ccccc1 to produce O=C1NC(=NCc2ccccc2)SC1=Cc1ccc2c(c1)OCO2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.