Using CC(O)C[C@H]1CCc2sc3ncnc(NC4CCC(NC(=O)OC(C)(C)C)CC4)c3c21 to produce CC(O)C[C@H]1CCc2sc3ncnc(NC4CCC(N)CC4)c3c21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.