New amino acids, 3-(6-carboxy-2-oxo-3-pyridyl)-L-alanine, 3-(6-carboxy-2-oxo-4-pyridyl)-L-alanine and N-[2-(3-pyridyl)ethyl]-L-glutamic acid were isolated from the poisonous mushroom Clitocybe acromelalga and their structures were determined. Their occurrence in this fungus supports the previously proposed biogenesis of acromelic acids. © 1993.
Yamano, K., & Shirahama, H. (1993). New amino acids from clitocybe acromelalga. Possible intermediates in the biogenesis of mushroom toxins, acromelic acids. Tetrahedron, 49(12), 2427–2436. https://doi.org/10.1016/S0040-4020(01)86321-3