Using CCOC(=O)CCSCC(=O)CSCCC(=O)OCC, CCOC(=O)NN to produce CCOC(=O)CCSCC(CSCCC(=O)OCC)=NNC(=O)OCC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.