Using O=C1CCC(CCCCNC(=O)OCc2ccccc2)(N=Cc2ccccc2)C(=O)N1 to produce NC1(CCCCNC(=O)OCc2ccccc2)CCC(=O)NC1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.