Using COc1c(-c2ccc3c(c2)CN(C(=O)OCc2ccccc2)C3)ccc2c(=O)c(C(=O)O)cn(C3CC3)c12 to produce COc1c(-c2ccc3c(c2)CNC3)ccc2c(=O)c(C(=O)O)cn(C3CC3)c12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.