Using Cc1c(C2CN(C(=O)OCc3ccccc3)C2)oc2c(C)c(OCc3ccccc3)ccc2c1=O to produce Cc1c(C2CNC2)oc2c(C)c(O)ccc2c1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.