Using CCNC1=N[C@@H]2[C@@H](O)[C@H](O)[C@@H](C(=O)N(C)OC)O[C@@H]2S1 to produce CCNC1=N[C@@H]2[C@@H](O)[C@H](O)[C@@H](C=O)O[C@@H]2S1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.