Using Cc1nnc(O)n1-c1ccc(Cl)cn1, CC(C)(C)N=C=O to produce Cc1nnc(OC(=O)NC(C)(C)C)n1-c1ccc(Cl)cn1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.