Using CSC(=NC(=O)OC(C)(C)C)NC(=O)OC(C)(C)C, NCc1cccc(O)c1 to produce CC(C)(C)OC(=O)NC(=NCc1cccc(O)c1)NC(=O)OC(C)(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.