Evidence map›Paper›PMID 39216012›Full record

ArticleAngewandte Chemie (International ed. in English)2025

Concise Synthesis of Cyctetryptomycin A and B Enabled by Zr-Catalyzed Dimerization.

Longhui Yu, Hiroshige Ogawa, Shangzhao Li, Tsoh Lam Cheung, Wenchao Liu, Dexiu Yan, Yudai Matsuda, Yusuke Kobayashi, Zhihong Guo, Kotaro Ikeda and 4 more

Abstract read
In one paragraph

Article in Angewandte Chemie (International ed. in English), 2025. 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. Article
  2. Zirconocene(III) in Organic Synthesis: Does the Ugly Duckling Become a Swan?International journal of molecular sciences · 2026
    Review
  3. Review
  4. Total Synthesis and Anticancer Study of (+)-Verticillin A.Journal of the American Chemical Society · 2025
    Article
  5. Concise Synthesis of Cyctetryptomycin A and B Enabled by Zr-Catalyzed Dimerization.Angewandte Chemie (International ed. in English) · 2025
    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

14 authors.

Longhui YuThe Hong Kong University of Science and Technology (HKUST), Clear Water Bay, Kowloon, Hong Kong SAR, China.
Hiroshige OgawaThe Hong Kong University of Science and Technology (HKUST), Clear Water Bay, Kowloon, Hong Kong SAR, China.
Shangzhao LiThe Hong Kong University of Science and Technology (HKUST), Clear Water Bay, Kowloon, Hong Kong SAR, China.
Tsoh Lam CheungThe Hong Kong University of Science and Technology (HKUST), Clear Water Bay, Kowloon, Hong Kong SAR, China.
Wenchao LiuThe Hong Kong University of Science and Technology (HKUST), Clear Water Bay, Kowloon, Hong Kong SAR, China.
Dexiu YanCity University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong SAR, China.
Yudai MatsudaCity University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong SAR, China.
Yusuke KobayashiKyoto Pharmaceutical University, 5 Nakauchi-cho, Misasagi, Yamashina-ku, Kyoto, 607-8414, Japan.
Zhihong GuoThe Hong Kong University of Science and Technology (HKUST), Clear Water Bay, Kowloon, Hong Kong SAR, China.
Kotaro IkedaThe Hong Kong University of Science and Technology (HKUST), Clear Water Bay, Kowloon, Hong Kong SAR, China.
Trevor A HamlinVrije Universiteit Amsterdam, De Boelelaan 1108, 1081 HZ, Amsterdam, The Netherlands.
Ken YamazakiDivision of Applied Chemistry, Okayama University Tsushimanaka, Okayama, 700-8530, Japan.
Pei-Yuan QianThe Hong Kong University of Science and Technology (HKUST), Clear Water Bay, Kowloon, Hong Kong SAR, China.ORCID https://orcid.org/0000-0003-4074-9078
Hugh NakamuraThe Hong Kong University of Science and Technology (HKUST), Clear Water Bay, Kowloon, Hong Kong SAR, China.ORCID https://orcid.org/0000-0001-5475-7883

Funding

Green Catalysis Science JP24H01861HKUST start up fund Project No. R9820JSPS KAKENHI JP24K17682National Key Research and Development Program of China 2018YFA0903200PI Project of Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou) 2021HJ01, SMSEGL20SC01RGC ECS, HKUST 26302024UGC and RGC of the Hong Kong SAR government 16100722, C6026-19G-A, and T11-104/22R
6 · The paper itself

Abstract

A concise synthetic strategy utilizing a Zr catalyst for the construction of cyctetryptomycin A and B is reported. Cyctetryptomycin A and B are recently isolated, complex tetrameric natural products for which total synthesis has not been previously reported. This study presents a practical approach for the construction of two consecutive quaternary carbon centers with a Zr catalyst. Furthermore, the first total synthesis of cyctetryptomycin A and B was achieved by this Zr-catalyzed radical coupling. The radical dimerization reaction mediated by the Zr catalyst required 1,2-bis(diphenylphosphino)ethane (dppe) as an indispensable additive. Through both experimental and theoretical investigations into the mechanism of this Zr-catalyzed reaction, the specific role of dppe was elucidated. In addition, the synthetic approach was extended to enable the practical synthesis of other dimeric natural products, including tetratryptomycin A, dibrevianamide F, and ditryptophenaline. Finally, the synthetic mechanism of cyctetryptomycin A and B, through the oxidative macrocyclization of tetratryptomycin A by CttpC, was newly elucidated by both experimental and docking simulations.

Indexed as

chemoenzymatic synthesisdimerizationnatural product synthesisZr catalysis

Identifiers

PMID39216012
PMCPMC11720396

What OpenQuestion holds

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LicenceCC BY
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.