User: I have a question about the compound with SMILES CNS(=O)(=O)Cc1ccc2[nH]cc(CCN(C)C)c2c1.
Assistant: Interesting, how can I help?
User: What is the first recorded year of approval for this drug?
Assistant: The answer is 1992
User: I have a question about the {#molecule|chemical|compound!} with {SMILES__description} {SMILES#}.
Assistant: {#Sure, what is your question?|How can I help?|That sounds interesting, how can I help?|Interesting, how can I help?!}
User: {quest#}
Assistant: {#The answer is |!}{answ#}
CNS(=O)(=O)Cc1ccc2[nH]cc(CCN(C)C)c2c1
CNS(=O)(=O)Cc1ccc2[nH]cc(CCN(C)C)c2c1
1-[3-[2-(dimethylamino)ethyl]-1H-indol-5-yl]-N-methylmethanesulfonamide
What is the first recorded year of approval for this drug?