Using COc1cccc(-c2nc3ccc(-c4cc(C=O)ccc4F)cc3c(=O)n2CC(=O)NC(C)C)c1, CNC to produce COc1cccc(-c2nc3ccc(-c4cc(CN(C)C)ccc4F)cc3c(=O)n2CC(=O)NC(C)C)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.