Precursor‐Directed Diversification of Cyclic Tetrapeptidic Pseudoxylallemycins

Abstract excerpt

Cyclic peptides containing non-proteinogenic amino acids often exhibit a broad bioactivity spectrum and many have entered clinical trials with good prospects for drug development. We recently reported the discovery of six cyclic tetrapeptides, pseudoxylallemycins A-F (1-6), from a termite-associated Pseudoxylaria sp. X802. These compounds contain a rare O-homoallenyl-l-tyrosine moiety and show promising...

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