Using CCOC(=O)[C@H](C)NC(=O)c1cccc2c3c([nH]c12)CCC3 to produce CCOC(=O)[C@H](C)NC(=O)c1cccc2c1NC1CCCC21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.