Paper · 2026 · Journal of Asian Natural Products Research

Fluorescent compounds from the roots of Eurycoma longifolia

Xiao Ji; Han Sun; Feng Wei; et al.

3
claims
6
verbatim quotes
0
citations
1
research areas
—
Not open access

Abstract

A fluorescent-guided isolation from Eurycoma longifolia led to the first identification of twenty-six compounds, namely coumarins (1–10) and carbolines (11–26). The new compound eurycomalind C (1) was characterized by NMR, HRESIMS, and calculated ECD. Compounds 1–4 demonstrated anti-inflammatory activity in LPS-stimulated macrophages.

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Claims 3

Observationobservedoriginal resultmeasured

Claim · model-written summary

Fluorescence-guided isolation from Eurycoma longifolia identified twenty-six compounds, coumarins 1-10 and carbolines 11-26.

Taxon
Eurycoma longifoliaEurycoma longifoliae1
Organ / stage
rootst0
Outcome
identification of twenty-six compoundse1
Value
twenty-six compoundse1

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Eurycoma longifolia
Eurycoma longifolia · Taxon · picture from its Wikimedia Commons categoryTongkatAliFactChecker · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e1

“A fluorescent-guided isolation from Eurycoma longifolia led to the first identification of twenty-six compounds, namely coumarins (1–10) and carbolines (11–26)”

✓ located verbatim in the source · abstract, characters 0–159 · show in text ↑
t0

“Fluorescent compounds from the roots of Eurycoma longifolia”

✓ located verbatim in the source · title, characters 0–59 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

The new compound eurycomalind C (1) was characterized by NMR, HRESIMS and calculated ECD.

Taxon
Eurycoma longifoliaEurycoma longifoliat0
Organ / stage
rootst0
Compound
eurycomalind C (1)e2
Outcome
characterizede2

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Eurycoma longifolia
Eurycoma longifolia · Taxon · picture from its Wikimedia Commons categoryTongkatAliFactChecker · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e2

“The new compound eurycomalind C (1) was characterized by NMR, HRESIMS, and calculated ECD”

✓ located verbatim in the source · abstract, characters 161–250 · show in text ↑
t0

“Fluorescent compounds from the roots of Eurycoma longifolia”

✓ located verbatim in the source · title, characters 0–59 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Compounds 1-4 showed anti-inflammatory activity in LPS-stimulated macrophages.

Taxon
Eurycoma longifoliaEurycoma longifoliat0
Organ / stage
rootst0
Compound
Compounds 1–4e3
Outcome
anti-inflammatory activitye3
Qualifier
LPS-stimulated macrophagese3

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Eurycoma longifolia
Eurycoma longifolia · Taxon · picture from its Wikimedia Commons categoryTongkatAliFactChecker · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e3

“Compounds 1–4 demonstrated anti-inflammatory activity in LPS-stimulated macrophages”

✓ located verbatim in the source · abstract, characters 252–335 · show in text ↑
t0

“Fluorescent compounds from the roots of Eurycoma longifolia”

✓ located verbatim in the source · title, characters 0–59 · show in text ↑