Using COC(=O)c1ccc2cnc(N[C@H]3CC[C@H](O)CC3)nc2c1 to produce O=C(O)c1ccc2cnc(N[C@H]3CC[C@H](O)CC3)nc2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.