Using CCCI, C=CCn1c(=O)[nH]c(=O)c2[nH]c(C34CC5CC(CC3C5)C4)nc21 to produce C=CCn1c(=O)n(CCC)c(=O)c2[nH]c(C34CC5CC(CC3C5)C4)nc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.