Studies on a new immunoactive peptide, FK-156. III. Structure elucidation.

The Journal of Antibiotics
1982.0

Abstract

FK-156, C20H33N5O11, mp 143~148°C (dec.) is a new immunostimulant produced by Streptomyces olivaceogriseus sp. nov. and S. violaceus. The structure has been elucidated to be D-Lac-L-Ala-γ-D-Glu-(L)meso-α,ε-A2pm(L)-GlyOH on the basis of chemical and spectroscopic properties.

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