Using COC(=O)COc1ccc(-c2nc3c(c(C4CCCCC4)nn3C)c(=O)[nH]2)c(OC)c1 to produce COc1cc(OCC(=O)O)ccc1-c1nc2c(c(C3CCCCC3)nn2C)c(=O)[nH]1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.