Using Cc1ccc(-c2cc(OCC3COC(C)(C)O3)cc(C(=O)O)c2)c(C#N)c1 to produce Cc1ccc(-c2cc(OCC(O)CO)cc(C(=O)O)c2)c(C#N)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.