Using CCOC(=O)CCc1c(C)c(N)c(C)c2c1OCC2c1ccc(C(C)C)cc1 to produce Cc1c(N)c(C)c2c(c1CCCO)OCC2c1ccc(C(C)C)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.