Using NC=O, CC(C)(C)c1csc(-c2cc3cc(Cn4nc(C(=O)OCc5ccccc5)c5ccccc54)ccc3o2)n1 to produce CC(C)(C)c1csc(-c2cc3cc(Cn4nc(C(N)=O)c5ccccc54)ccc3o2)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.