Using Cc1cn(Cc2ccccc2)c(=O)n(CCCNC(=O)OC(C)(C)C)c1=O to produce Cc1cn(Cc2ccccc2)c(=O)n(CCCN)c1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.