Using CC(C)(C)OC(=O)NC(=NS(=O)(=O)C(F)(F)F)NC(=O)OC(C)(C)C, Nc1cnn(CCO)c1N to produce CC(C)(C)OC(=O)N=C(NC(=O)OC(C)(C)C)Nc1cnn(CCO)c1N, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.