Using Cc1cn([C@H]2C[C@@H]3OC[C@H]3O2)c(=O)[nH]c1=O to produce Cc1cn([C@H]2C=C[C@@H](CO)O2)c(=O)[nH]c1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.