Using CC1(C)OC[C@@H](COn2cnc3c(Cl)nc(NC=O)nc32)O1 to produce CC1(C)OC[C@@H](COn2cnc3c(Cl)nc(N)nc32)O1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.