Using CN(C)C=O, CC(Cn1ncc2ccc3c(c21)NC(=O)CO3)NC(=O)OC(C)(C)C to produce C[C@@H](Cn1ncc2ccc3c(c21)N(C)C(=O)CO3)NC(=O)OC(C)(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.