FR-900130, a novel amino acid antibiotic. II. Isolation and structure elucidation of the acetyl derivative of FR-900130

FR-900130 is a new antibiotic having an acetylene moiety and is very unstable in aqueous solution. The antibiotic was isolated as the acetyl derivative by ion-exchange resin and adsorption chromatography. The structure has been determined to be L-2-amino-3-butynoic acid by spectral data of its derivatives.