User: I want to know more about the molecule with SMILES CN1C(CCl)Nc2cc(Cl)c(S(N)(=O)=O)cc2S1(=O)=O.
Assistant: How can I help?
User: What is the first recorded year of approval for this drug?
Assistant: The answer is 1960
User: I want to know more 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#}
CN1C(CCl)Nc2cc(Cl)c(S(N)(=O)=O)cc2S1(=O)=O
CN1C(CCl)Nc2cc(Cl)c(S(N)(=O)=O)cc2S1(=O)=O
6-chloro-3-(chloromethyl)-2-methyl-1,1-dioxo-3,4-dihydro-1λ6,2,4-benzothiadiazine-7-sulfonamide
What is the first recorded year of approval for this drug?