Using C=Cc1cc(-c2c(CCCCC(=O)O)c(C)nn3c(CC)ccc23)ccn1 to produce CCc1cc(-c2c(CCCCC(=O)O)c(C)nn3c(CC)ccc23)ccn1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.