Using COC1=CC2=CC[C@@H]3[C@H](CC[C@]4(C)C(=O)CC[C@@H]34)[C@@]2(C)CC1, NCCN to produce C#C[C@@]1(O)CC[C@H]2[C@@H]3CC=C4C=C(OC)CC[C@]4(C)[C@H]3CC[C@@]21C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.