Using CCOC(=O)c1cc2c(C(=O)NCC34CC5CC(CC(C5)C3)C4)cccn2n1 to produce O=C(O)c1cc2c(C(=O)NCC34CC5CC(CC(C5)C3)C4)cccn2n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.