Task: Please answer the following question about the molecule with SMILES NC(=O)CC[C@H](N)C(=O)O.
Request: What is the first recorded year of approval for this drug?
Result: 2004
Task: Please answer the following question about the molecule with {SMILES__description} {SMILES#}.
{#Description|Question|Request!}: {quest#}
{#Result|Answer|Completion!}: {answ#}
NC(=O)CC[C@H](N)C(=O)O
NC(=O)CC[C@H](N)C(=O)O
(2S)-2,5-diamino-5-oxopentanoicacid
What is the first recorded year of approval for this drug?