Using COc1ncccc1-c1cc(C#Cc2ccc(N)cn2)c(OC)c(C(C)(C)C)c1 to produce COc1ncccc1-c1cc(CCc2ccc(N)cn2)c(OC)c(C(C)(C)C)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.