Iodoetherification as a strategy towards sp-rich scaffolds for drug discovery.

Bioorg Med Chem

School of Chemistry, University of Nottingham, University Park, Nottingham NG7 2RD, United Kingdom. Electronic address:

Published: March 2024

Functionalised tetrahydropyran and spirooxepane scaffolds were prepared utilising an iodoetherification strategy and elaborated to demonstrate their potential use in library synthesis. The iodoetherification products could be readily transformed to the corresponding azides that could be further functionalised via copper-catalysed azide-alkyne cycloaddition or reduction to the amine. The lead-likeness and three-dimensionality of the scaffolds were examined and compared to commercial libraries.

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.bmc.2024.117636DOI Listing

Publication Analysis

Top Keywords

iodoetherification strategy
8
strategy sp-rich
4
sp-rich scaffolds
4
scaffolds drug
4
drug discovery
4
discovery functionalised
4
functionalised tetrahydropyran
4
tetrahydropyran spirooxepane
4
spirooxepane scaffolds
4
scaffolds prepared
4

Similar Publications

Iodoetherification as a strategy towards sp-rich scaffolds for drug discovery.

Bioorg Med Chem

March 2024

School of Chemistry, University of Nottingham, University Park, Nottingham NG7 2RD, United Kingdom. Electronic address:

Functionalised tetrahydropyran and spirooxepane scaffolds were prepared utilising an iodoetherification strategy and elaborated to demonstrate their potential use in library synthesis. The iodoetherification products could be readily transformed to the corresponding azides that could be further functionalised via copper-catalysed azide-alkyne cycloaddition or reduction to the amine. The lead-likeness and three-dimensionality of the scaffolds were examined and compared to commercial libraries.

View Article and Find Full Text PDF

Herein, we disclose the enantioselective synthesis of novel tricyclic fluorooctahydrofuranoindole spirooxindoles bearing five contiguous stereocenters via an organocatalytic sequential Diels-Alder/Reduction/Fluoroetherifiction reaction strategy. The potential of the developed approach was witnessed by generating vast examples (up to 20 examples) of library molecules embedding natural product core with good yields and phenomenal diastereo- and enantioselectivities (up to 77 % overall yield, up to 99 % ee and 10 : 1 dr). The synthetic utility of our protocol was further demonstrated by synthesizing tricyclic iodooctahydroindole spirooxindole framework through sequential Diels-Alder/reduction/iodoetherification reaction in 65 % overall yield and excellent stereoselectivity (99 % ee and 4 : 1 dr).

View Article and Find Full Text PDF

A straightforward and modular sequence for the synthesis of substituted spirocyclic tetrahydrofurans is described. The strategy relies on a reductive cobalt-catalyzed three-component reaction between a cyclic ketone, an acrylate, and a vinylic bromide followed by an intramolecular iodoetherification of the resulting γ-hydroxyalkene. Some functional group interconversions allowed the preparation of more varied spirocyclic compounds.

View Article and Find Full Text PDF

Total Synthesis of Euonymine and Euonyminol Octaacetate.

J Am Chem Soc

December 2021

Graduate School of Pharmaceutical Sciences, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan.

Euonymine () and euonyminol octaacetate () share the core structure of euonyminol (), the most hydroxylated member of the dihydro-β-agarofuran family. In , eight of the nine hydroxy groups of are acetylated, and has six acetyl groups and a 14-membered bislactone comprising a pyridine dicarboxylic acid with two methyl groups. The different acylation patterns provide distinct biological activities: and display anti-HIV and P-glycoprotein inhibitory effects, respectively.

View Article and Find Full Text PDF

We describe a novel strategy for synthesizing the CD bicyclic ether substructure of the fused polycyclic ether natural product brevenal. This product arises from a three-step sequence beginning with (1) regio- and diastereoselective iodoetherification of an acyclic diene-diol, followed by (2) alkene metathesis with an epoxyalkene synthon, concluding with (3) palladium-catalyzed cycloisomerization. Despite the modest yield and long reaction period for the cycloisomerization step, these studies provide valuable insights into the nature of byproducts generated and the mechanisms by which they form.

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!