[{"from": "human", "value": "Provide a description of this molecule. [C][C][=C][Branch1][=Branch2][C][=Branch1][C][=O][O][C][Ring1][=Branch1][C][O]"}, {"from": "gpt", "value": "The molecule is a butenolide that is furan-2(5H)-one substituted by a hydroxymethyl group at position 3 and a methyl group at position 4. Isolated from an edible mushroom Mycoleptodonoides aitchisonii, it exhibits protective activity against endoplasmic reticulum (ER) stress dependent cell death. It has a role as a metabolite and a neuroprotective agent. It is a butenolide and a primary alcohol."}]