Student or educator? Sign up with your school email and get 6 months of Pro free.
Cited by 183

The DOI matches its Crossref record.

Chemical Constituents of Prangos tschimganica; Structure Elucidation and Absolute Configuration of Coumarin and Furanocoumarin Derivatives with Anti-HIV Activity.

Open access
SHIKISHIMA, Yasuhiro, TAKAISHI, Yoshihisa, HONDA, Gisho, ITO, Michiho, TAKEDA, Yoshio, KODZHIMATOV, Olimjon K., ASHURMETOV, Ozodbek, LEE, Kuo-Hsing·2001·Chemical and Pharmaceutical Bulletin

Abstract

The methanol extract of the dried aerial parts of Prangos tschimganica gave three new coumarin derivatives and 30 known coumarin derivatives. Their structures were established on the basis of chemical and spectroscopic evidence. Absolute configuration of the isolated compounds were determined by using a modified Mosher's method. Some of the isolated compounds showed anti-HIV activity.

Overview

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1248/cpb.49.877

Cites

Statistics

Verification

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Citations

Cited by

See all 183

Metadata

Authors
SHIKISHIMA, Y., TAKAISHI, Y., HONDA, G., ITO, M., TAKEDA, Y., KODZHIMATOV, O. K., ASHURMETOV, O., & LEE, K.-H.
Venue
Chemical and Pharmaceutical Bulletin
Published
2001
Volume
49
Issue
7
Pages
877-880
ISSN
  • 0009-2363 (ISSN-L)
  • 1347-5223
OpenAlex
W2109623610
Cited by
183
References
0
FWCI
4.86
Type
journal article
Language
en
Open access
bronze

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review

How to cite

Cite CoChat for the checks on this page, and the paper for its own findings.

This page
CoChat. (2026). Citation check: Chemical Constituents of Prangos tschimganica; Structure Elucidation and Absolute Configuration of Coumarin and Furanocoumarin Derivatives with Anti-HIV Activity. https://app.cochat.ai/papers/10.1248/cpb.49.877
The paper
SHIKISHIMA, Y., TAKAISHI, Y., HONDA, G., ITO, M., TAKEDA, Y., KODZHIMATOV, O. K., ASHURMETOV, O., & LEE, K.-H. (2001). Chemical Constituents of Prangos tschimganica; Structure Elucidation and Absolute Configuration of Coumarin and Furanocoumarin Derivatives with Anti-HIV Activity. Chemical and Pharmaceutical Bulletin. https://doi.org/10.1248/cpb.49.877

Data sources

Bibliographic data: Semantic Scholar, OpenAlex, Crossref.

Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.