Using CC(C)(C)OC(=O)N[C@]12CCC[C@](NC(=O)c3cnccn3)(CC1)C2 to produce N[C@]12CCC[C@](NC(=O)c3cnccn3)(CC1)C2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.