Evidence map›Paper›PMID 25365379›Full record

ArticleOrganic letters2014

Delitschiapyrone A, a pyrone-naphthalenone adduct bearing a new pentacyclic ring system from the leaf-associated fungus Delitschia sp. FL1581.

Jian-Guang Luo, Xiao-Bing Wang, Ya-Ming Xu, Jana M U'Ren, A Elizabeth Arnold, Ling-Yi Kong, A A Leslie Gunatilaka

Abstract read
In one paragraph

Article in Organic letters, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

5 citing papers in PubMed.

  1. The Diels-Alder Reaction as a Key Step in Natural Product Synthesis.Progress in the chemistry of organic natural products · 2026
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors.

Jian-Guang LuoState Key Laboratory of Natural Medicines, Department of Natural Medicinal Chemistry, China Pharmaceutical University , 24 Tong Jia Xiang, Nanjing 210009, People's Republic of China.
Xiao-Bing Wang
Ya-Ming Xu
Jana M U'Ren
A Elizabeth Arnold
Ling-Yi Kong
A A Leslie Gunatilaka

Funding

Anticancer Agents from Plant- and Lichen-Associated Fungi of the Sonoran DesertR01CA090265 · NCI · UNIVERSITY OF ARIZONA · PI GUNATILAKA, LESLIE · 2002 to 2013
$2.2M
NCI NIH HHS R01 CA090265NCI NIH HHS R01 CA90265NIGMS NIH HHS P41 GM09060
6 · The paper itself

Abstract

Delitschiapyrone A (1), an α-pyrone-naphthalenone adduct with an unprecedented pentacyclic ring system, was isolated from a solid culture of the leaf-associated fungus Delitschia sp. FL1581. The structure of 1 was elucidated by spectroscopic analysis and X-ray crystallography, and its absolute configuration was defined by experimental and calculated ECD. Biosynthetically, the unique 6/6/5/7/6 pentacyclic core of 1 may be formed by an intermolecular Diels-Alder-type addition of the precursors derived from (1'R)-2',3'-dihydropyrenocine C (2) and 6-ethyl-2,7-dimethoxyjuglone (3) found to co-occur with 1 in this fungus.

Indexed as

Antineoplastic AgentsAscomycotaCrystallography, X-RayDrug Screening Assays, AntitumorMolecular ConformationMolecular StructureNaphthalenesNuclear Magnetic Resonance, BiomolecularPlant LeavesPyronesAntineoplastic Agentsdelitschiapyrone ANaphthalenesPyrones

Identifiers

PMID25365379
PMCPMC4251527

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.