| Literature DB >> 29935040 |
Lauren A M Murray1, Shaun M K McKinnie2,3, Henry P Pepper1, Reto Erni2,3, Zachary D Miles2,3, Michelle C Cruickshank1, Borja López-Pérez1, Bradley S Moore2,3, Jonathan H George1.
Abstract
The naphterpins and marinones are naphthoquinone meroterpenoids with an unusual aromatic oxidation pattern that is biosynthesized from 1,3,6,8-tetrahydroxynaphthalene (THN). We propose that cryptic halogenation of THN derivatives by vanadium-dependent chloroperoxidase (VCPO) enzymes is key to this biosynthetic pathway, despite the absence of chlorine in these natural products. This speculation inspired a total synthesis to mimic the naphterpin/marinone biosynthetic pathway. In validation of this biogenetic hypothesis, two VCPOs were discovered that interconvert several of the proposed biosynthetic intermediates.Entities:
Keywords: biomimetic synthesis; biosynthesis; dearomatization; meroterpenoids; total synthesis
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Year: 2018 PMID: 29935040 PMCID: PMC6248334 DOI: 10.1002/anie.201804351
Source DB: PubMed Journal: Angew Chem Int Ed Engl ISSN: 1433-7851 Impact factor: 15.336