Abstract
3-Amino-3-deoxy-α-D-glucopyranosyl-α-D-glucopyranoside (α, α-3-trehalosamine) was isolated from a culture of Nocardiopsis trehalosei sp. nov. (NRRL 12026). The structure was determined using a combination of spectroscopic techniques on derivatives of the component sugars, especially gas chromatography-mass spectrometry. The compound exhibited antibiotic activity against Gram-positive organisms at levels similar to what was found for the 2-and 4-trehalosamines.
