3-hydroxymethyl-4-methyl-furan-2(5H)-one 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.  | 
 
 
 
  |