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Bando Y, Hou Y, Seyfarth L, Probst J, Götze S, Bogacz M, Hellmich UA, Stallforth P, Mittag M, Arndt HD. Total Synthesis and Structure Correction of the Cyclic Lipodepsipeptide Orfamide A. Chemistry 2022; 28:e202104417. [PMID: 35199896 PMCID: PMC9311703 DOI: 10.1002/chem.202104417] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Indexed: 11/15/2022]
Abstract
A total synthesis of the cyclic lipodepsipeptide natural product orfamide A was achieved. By developing a synthesis format using an aminoacid ester building block and SPPS protocol adaptation, a focused library of target compounds was obtained, in high yield and purity. Spectral and LC‐HRMS data of all library members with the isolated natural product identified the 5Leu residue to be d‐ and the 3’‐OH group to be R‐configured. The structural correction of orfamide A by chemical synthesis and analysis was confirmed by biological activity comparison in Chlamydomonas reinhardtii, which indicated compound configuration to be important for bioactivity. Acute toxicity was also found against Trypanosoma brucei, the parasite causing African sleeping sickness.
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Affiliation(s)
- Yuko Bando
- Friedrich Schiller University Jena, Institute for Organic Chemistry and Macromolecular Chemistry, Humboldtstr. 10, 07743, Jena, Germany
| | - Yu Hou
- Friedrich Schiller University Jena Matthias Schleiden Institute of Genetics, Bioinformatics and Molecular Botany, Am Planetarium 1, 07743, Jena, Germany
| | - Lydia Seyfarth
- Friedrich Schiller University Jena, Institute for Organic Chemistry and Macromolecular Chemistry, Humboldtstr. 10, 07743, Jena, Germany
| | - Jannik Probst
- Friedrich Schiller University Jena, Institute for Organic Chemistry and Macromolecular Chemistry, Humboldtstr. 10, 07743, Jena, Germany
| | - Sebastian Götze
- Leibniz Institute for Natural Product Research and Infection Biology Hans Knöll Institute, Department of Paleobiotechnology, Beutenbergstraße 11a, 07745, Jena, Germany
| | - Marta Bogacz
- Friedrich Schiller University Jena, Institute for Organic Chemistry and Macromolecular Chemistry, Humboldtstr. 10, 07743, Jena, Germany
| | - Ute A Hellmich
- Friedrich Schiller University Jena, Institute for Organic Chemistry and Macromolecular Chemistry, Humboldtstr. 10, 07743, Jena, Germany
| | - Pierre Stallforth
- Friedrich Schiller University Jena, Institute for Organic Chemistry and Macromolecular Chemistry, Humboldtstr. 10, 07743, Jena, Germany.,Leibniz Institute for Natural Product Research and Infection Biology Hans Knöll Institute, Department of Paleobiotechnology, Beutenbergstraße 11a, 07745, Jena, Germany
| | - Maria Mittag
- Friedrich Schiller University Jena Matthias Schleiden Institute of Genetics, Bioinformatics and Molecular Botany, Am Planetarium 1, 07743, Jena, Germany
| | - Hans-Dieter Arndt
- Friedrich Schiller University Jena, Institute for Organic Chemistry and Macromolecular Chemistry, Humboldtstr. 10, 07743, Jena, Germany
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Mitsunobu-Reaction-Based Total Solid-Phase Synthesis of Fanlizhicyclopeptide B. Chem Nat Compd 2021. [DOI: 10.1007/s10600-021-03554-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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