User: I want to know more about the molecule with SMILES CC/C=C\C/C=C\C/C=C\C/C=C\C/C=C\CCCC(=O)OCC.
Assistant: Interesting, how can I help?
User: What is the first recorded year of approval for this drug?
Assistant: 2012
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#}
CC/C=C\C/C=C\C/C=C\C/C=C\C/C=C\CCCC(=O)OCC
CC/C=C\C/C=C\C/C=C\C/C=C\C/C=C\CCCC(=O)OCC
ethyl (5Z,8Z,11Z,14Z,17Z)-icosa-5,8,11,14,17-pentaenoate
What is the first recorded year of approval for this drug?