Enantiomeric pairs of macrocyclic acylphloroglucinols from Syzygium szemaoense

Bioorg Chem. 2023 Mar:132:106381. doi: 10.1016/j.bioorg.2023.106381. Epub 2023 Jan 20.

Abstract

Two enantiomeric pairs of macrocyclic acylphloroglucinols (1a/1b and 2a/2b) with an unprecedented carbon skeleton featuring a bicyclo[12.3.1]octadecane core, together with an undescribed biogenetically related long-chain acylphloroglucinol (3), were isolated from Syzygium szemaoense. Their structures were fully established by spectroscopic method, X-ray crystallographic analysis, and ECD calculation. Compounds 1b and 2a/2b exhibited inhibition against death-associated protein kinase-related apoptosis inducing protein kinase 2 (DRAK2) and ATP citrate lyase (ACLY), respectively.

Keywords: ATP citrate lyase; Acylphloroglucinol enantiomers; Death-associated protein kinase-related apoptosis inducing protein kinase 2; Syzygium szemaoense.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Crystallography, X-Ray
  • Molecular Structure
  • Spectrum Analysis
  • Syzygium*