1964 年 84 巻 12 号 p. 1186-1188
From Amanita strobiliformis (PAUL.) QUER. (Jap. name: Ibotengutake), colorless and odorless pillar crystalline component with good flavor, providing remarkable fly-killing properties, m. p. 151-152° (decomp.), C5H8O5N2 was isolated. The compound is considered to be an unknown acidic amino acid and is called ibotenic acid, naming after the ibotengutake.