Total synthesis of sphingofungin F.

Org Lett

College of Pharmacy, SungKyunKwan University, Suwon 440-746, Korea.

Published: December 2002

[reaction: see text] A concise, stereocontrolled synthesis of sphingofungin F was achieved. Key features involve diastereoselective oxazoline formation catalyzed by palladium(0), MgBr(2)-promoted gamma-alkoxy allylic stannane addition, and palladium(0)-catalyzed coupling of a vinyl iodide with an organozinc reagent.

Download full-text PDF

Source
http://dx.doi.org/10.1021/ol020164fDOI Listing

Publication Analysis

Top Keywords

synthesis sphingofungin
8
total synthesis
4
sphingofungin [reaction
4
[reaction text]
4
text] concise
4
concise stereocontrolled
4
stereocontrolled synthesis
4
sphingofungin achieved
4
achieved key
4
key features
4

Similar Publications

In 1999, the first biosynthetic gene cluster (BGC), synthesizing the virulence factor DHN melanin, was characterized in . Since then, 19 additional BGCs have been linked to specific secondary metabolites (SMs) in this species. Here, we provide a comprehensive timeline of BGC discovery and find that initial advances centered around the commonly expressed SMs where chemical structure informed rationale identification of the producing BGC (e.

View Article and Find Full Text PDF

Sphingofungins are sphinganine analog mycotoxins acting as inhibitors of serine palmitoyl transferases, enzymes responsible for the first step in the sphingolipid biosynthesis. Eukaryotic cells are highly organized with various structures and organelles to facilitate cellular processes and chemical reactions, including the ones occurring as part of the secondary metabolism. We studied how sphingofungin biosynthesis is compartmentalized in the human-pathogenic fungus , and we observed that it takes place in the endoplasmic reticulum (ER), ER-derived vesicles, and the cytosol.

View Article and Find Full Text PDF

The lack of studies evaluating the chemical responses of kombucha microorganisms when exposed to plants is notable in the literature. Therefore, this work investigates the chemical behaviour of 7-, 14- and 21 day-fermentation of kombucha derived from three extracts obtained from banana inflorescence, black tea, and grape juice. After the acquisition of UPLC-ESI-MS data, GNPS molecular networking, MS-Dial, and MS-Finder were used to chemically characterize the samples.

View Article and Find Full Text PDF

Recent advances in the total synthesis of polyhydroxylated alkaloids chiral oxazines.

Org Biomol Chem

January 2024

YS Life Science Co., Ltd, 207, Sujeong-ro, Jangan-myeon, Hwaseong-si, Gyeonggi-do, 18581, Republic of Korea.

This review summarizes recently established methodologies developed for the enantioselective and diastereoselective synthesis of chiral 1,3-oxazines. These compounds are of interest as advanced synthetic intermediates in the total synthesis of structurally complex and biologically active polyhydroxylated alkaloids such as (+)-1-deoxynojirimycin, (-)-anisomycin, (+)-castanospermine, (+)-casuarine, (-)-conduramine F-1, (-)-sphingofungin B, Neu5Ac methyl ester, and other natural products. The devised synthetic approach aims to offer a direct, efficient, and adaptable method for obtaining both pure enantiomers and pure diastereomers.

View Article and Find Full Text PDF

Desaturation of the Sphingofungin Polyketide Tail Results in Increased Serine Palmitoyltransferase Inhibition.

Microbiol Spectr

October 2022

Biobricks of Microbial Natural Product Syntheses, Leibniz Institute for Natural Product Research and Infection Biology, Hans Knöll Institute (HKI), Jena, Germany.

Article Synopsis
  • Serine palmitoyltransferase is crucial for sphingolipid biosynthesis and has been linked to diseases like cancer and Alzheimer’s, making it a valuable target for therapies.
  • Sphingofungins, natural inhibitors derived from fungi, were tested using a new colorimetric assay that measures serine palmitoyltransferase activity in a 96-well format.
  • The study found that modifications to the sphingofungins affect their inhibitory activity, with notable differences in how they interact with enzymes from both bacterial and fungal sources.
View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!