T. Ohta et al., (S)-CIS-2-AMINO-5-CHLORO-4-PENTENOIC ACID FROM THE FUNGUS AMANITA VERGINEOIDES, Chemical and Pharmaceutical Bulletin, 43(5), 1995, pp. 899-900
A chlorinated amino acid was isolated from Amanita vergineoides. The s
tereostructure was elucidated as (S)-cis-2-amino-5-chloro-4-pentenoic
acid, on the basis of spectroscopic analysis.