Evidence map›Paper›PMID 35481106›Full record

ArticleRSC advances2022

Direct sialic acid 4-OAc substitution by nitrogen, sulfur and carbon nucleophiles with retention of stereochemistry.

Tiago Bozzola, Ulf J Nilsson, Ulf Ellervik

Abstract read
In one paragraph

Article in RSC advances, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing 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

2 citing papers in PubMed.

  1. Article
  2. 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

3 authors.

Tiago BozzolaCentre for Analysis and Synthesis, Department of Chemistry, Lund University P.O. Box 124 SE-221 00 Lund Sweden ulf.ellervik@chem.lu.se.
Ulf J NilssonCentre for Analysis and Synthesis, Department of Chemistry, Lund University P.O. Box 124 SE-221 00 Lund Sweden ulf.ellervik@chem.lu.se.ORCID https://orcid.org/0000-0001-5815-9522
Ulf EllervikCentre for Analysis and Synthesis, Department of Chemistry, Lund University P.O. Box 124 SE-221 00 Lund Sweden ulf.ellervik@chem.lu.se.ORCID https://orcid.org/0000-0001-5287-0137

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

A direct one-step nucleophilic substitution of the 4-OAc of acetyl protected Neu5Ac is presented. Previously published methods for direct substitution of the 4-OAc are limited to cyclic secondary amines. Here we present conditions that allow for a much wider range of nitrogen nucleophiles as well as thiols and cyanide, to be used. The present investigation significantly broadens the scope of 4-aminations and allows for the introduction of a wide variety of different nucleophiles.

Identifiers

PMID35481106
PMCPMC9016497

What OpenQuestion holds

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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.