Using Cn1c(-c2cccnc2)c(C=CCCCC(=O)O)c2ccccc21 to produce Cn1c(-c2cccnc2)c(CCCCCC(=O)O)c2ccccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.