ArticleOrganic letters2023
Cyclic Allene Approach to the Manzamine Alkaloid Keramaphidin B.
Article in Organic letters, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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.
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.
Who cites it
7 citing papers in PubMed.
- Development of a Vinylated Cyclic Allene: A Fleeting Strained Diene for the Diels-Alder Reaction.Angewandte Chemie (International ed. in English) · 2025Article
- Geometric distortion as an enabling tool for organic synthesis.Nature synthesis · 2025Article
- Total Synthesis of Lissodendoric Acid A.Angewandte Chemie (International ed. in English) · 2024Article
- Diels-Alder Cycloadditions of Oxacyclic Allenes and α-Pyrones.Organic letters · 2024Article
- Access to Complex Scaffolds Through [2 + 2] Cycloadditions of Strained Cyclic Allenes.Journal of the American Chemical Society · 2024Article
- Evaluation of Retro-Aldol vs Retro-Carbonyl-Ene Mechanistic Pathways in a Complexity-Generating C-C Bond Fragmentation.Organic letters · 2024Article
- Total Synthesis of Njaoamine C by Concurrent Macrocycle Formation.Journal of the American Chemical Society · 2023Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
4 authors.
Funding
Abstract
We report an approach to the core of the manzamine alkaloid keramaphidin B that relies on the strain-promoted cycloaddition of an azacyclic allene with a pyrone trapping partner. The cycloaddition is tolerant of nitrile and primary amide functional groups and can be complemented with a subsequent retro-Diels-Alder step. These efforts demonstrate that strained cyclic allenes can be used to build significant structural complexity and should encourage further studies of these fleeting intermediates.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
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.