Evidence map›Paper›PMID 41412558›Full record

ArticleJournal of peptide science : an official publication of the European Peptide Society2026

On-Resin Pictet-Spengler Cyclization for 1,2,3,4-Tetrahydro-β-carboline-3-carboxylate (Tcc) Peptide Synthesis With Acid-Labile Functional Tolerance.

Omer S L N'dri, Charity D Yongo-Luwawa, Xiaozheng Wei, Kajumee Bora Bhowal, Chitra P Sadanandhan, Darince Truong, Ida Boccino, Will Maclean, Lylia Dif-Yaiche, Zoé Villeneuve and 1 more

Abstract read
In one paragraph

Article in Journal of peptide science : an official publication of the European Peptide Society, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

1 citing paper in PubMed.

  1. Article
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

11 authors.

Omer S L N'driDépartement de Chimie, Université de Montréal, Montréal, Québec, Canada.ORCID https://orcid.org/0009-0006-2372-9656
Charity D Yongo-LuwawaDépartement de Chimie, Université de Montréal, Montréal, Québec, Canada.
Xiaozheng WeiDépartement de Chimie, Université de Montréal, Montréal, Québec, Canada.
Kajumee Bora BhowalDépartement de Chimie, Université de Montréal, Montréal, Québec, Canada.
Chitra P SadanandhanDépartement de Chimie, Université de Montréal, Montréal, Québec, Canada.
Darince TruongDépartement de Chimie, Université de Montréal, Montréal, Québec, Canada.ORCID https://orcid.org/0009-0007-9423-6362
Ida BoccinoDépartement de Chimie, Université de Montréal, Montréal, Québec, Canada.
Will MacleanDépartement de Chimie, Université de Montréal, Montréal, Québec, Canada.
Lylia Dif-YaicheDépartement de Chimie, Université de Montréal, Montréal, Québec, Canada.
Zoé VilleneuveDépartement de Chimie, Université de Montréal, Montréal, Québec, Canada.
William D LubellDépartement de Chimie, Université de Montréal, Montréal, Québec, Canada.ORCID https://orcid.org/0000-0002-3080-2712

Funding

Centre in Green Chemistry and Catalysis CGCC, FRQNT-2020-RS4-265155-CCVCCIHR PJT-186296Fonds de Recherche du Québec-Nature et Technologie for support of the Biodiversa+ program 356910Natural Sciences and Engineering Research Council of Canada RGPIN-2025-04423
6 · The paper itself

Abstract

The constrained tryptophan (Trp) analog 1,2,3,4-tetrahydro-β-carboline-3-carboxylic acid (Tcc) is used to restrict peptide conformation in structure-activity relationship studies. Although Pictet-Spengler cyclization of Trp and aldehydes with mineral acid gives Tcc analogs, such harsh conditions do not tolerate acid-labile functionality. To enable broader use of Tcc residues, mild conditions are now reported for the on-resin Pictet-Spengler cyclisation in the presence of acid-labile side chain protection and linker strategies.

Indexed as

CarbolinesPeptidesCyclizationStructure-Activity RelationshipTryptophanCarbolinesPeptidesTryptophan

Identifiers

PMID41412558
PMCPMC12714488

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
Read underepoch 390

Registered trials

None linked

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.