Evidence map›Paper›PMID 33875818›Full record

ArticleNature chemistry2021

Automated synthesis of prexasertib and derivatives enabled by continuous-flow solid-phase synthesis.

Chenguang Liu, Jiaxun Xie, Wenbin Wu, Mu Wang, Weihao Chen, Shabana Binte Idres, Jiawei Rong, Lih-Wen Deng, Saif A Khan, Jie Wu

Abstract read
In one paragraph

Article in Nature chemistry, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing 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

21 citing papers in PubMed.

  1. Article
  2. Chemical ONature communications · 2026
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  16. Natural and Man-Made Cyclic Peptide-Based Antibiotics.Antibiotics (Basel, Switzerland) · 2022
    Review
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  18. Article
  19. Article
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

10 authors.

Chenguang LiuDepartment of Chemistry, National University of Singapore, Singapore, Republic of Singapore.
Jiaxun XieDepartment of Chemical and Biomolecular Engineering, National University of Singapore, Singapore, Republic of Singapore.
Wenbin WuDepartment of Chemistry, National University of Singapore, Singapore, Republic of Singapore.
Mu WangDepartment of Chemistry, National University of Singapore, Singapore, Republic of Singapore.
Weihao ChenDepartment of Chemistry, National University of Singapore, Singapore, Republic of Singapore.
Shabana Binte IdresDepartment of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, National University Health System, Singapore, Republic of Singapore.
Jiawei RongDepartment of Chemical and Biomolecular Engineering, National University of Singapore, Singapore, Republic of Singapore.
Lih-Wen DengDepartment of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, National University Health System, Singapore, Republic of Singapore.
Saif A KhanDepartment of Chemical and Biomolecular Engineering, National University of Singapore, Singapore, Republic of Singapore. chesakk@nus.edu.sg.ORCID http://orcid.org/0000-0002-8990-8802
Jie WuDepartment of Chemistry, National University of Singapore, Singapore, Republic of Singapore. chmjie@nus.edu.sg.ORCID http://orcid.org/0000-0002-9865-180X

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Recent advances in end-to-end continuous-flow synthesis are rapidly expanding the capabilities of automated customized syntheses of small-molecule pharmacophores, resulting in considerable industrial and societal impacts; however, many hurdles persist that limit the number of sequential steps that can be achieved in such systems, including solvent and reagent incompatibility between individual steps, cumulated by-product formation, risk of clogging and mismatch of timescales between steps in a processing chain. To address these limitations, herein we report a strategy that merges solid-phase synthesis and continuous-flow operation, enabling push-button automated multistep syntheses of active pharmaceutical ingredients. We demonstrate our platform with a six-step synthesis of prexasertib in 65% isolated yield after 32 h of continuous execution. As there are no interactions between individual synthetic steps in the sequence, the established chemical recipe file was directly adopted or slightly modified for the synthesis of twenty-three prexasertib derivatives, enabling both automated early and late-stage diversification.

Indexed as

Chemistry Techniques, SyntheticHumansPyrazinesPyrazolesSolid-Phase Synthesis TechniquesprexasertibPyrazinesPyrazoles

Identifiers

PMID33875818
PMCPMC8054510

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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.