Evidence map›Paper›PMID 32602717›Full record

ArticleThe Journal of organic chemistry2020

Synthesis of Pyrrolopyrazinones by Construction of the Pyrrole Ring onto an Intact Diketopiperazine.

Susanna K Maisto, Angela P Leersnyder, Gwyneth L Pudner, Jonathan R Scheerer

Abstract read
In one paragraph

Article in The Journal of organic chemistry, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing 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

3 citing papers in PubMed.

  1. Synthesis of Functionalized 1Molecules (Basel, Switzerland) · 2025
    Article
  2. Article
  3. Review
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

4 authors.

Susanna K MaistoDepartment of Chemistry, The College of William & Mary, P.O. Box 8795, Williamsburg, Virginia 23187, United States.
Angela P LeersnyderDepartment of Chemistry, The College of William & Mary, P.O. Box 8795, Williamsburg, Virginia 23187, United States.
Gwyneth L PudnerDepartment of Chemistry, The College of William & Mary, P.O. Box 8795, Williamsburg, Virginia 23187, United States.
Jonathan R ScheererDepartment of Chemistry, The College of William & Mary, P.O. Box 8795, Williamsburg, Virginia 23187, United States.ORCID 0000-0003-3283-0220

Funding

New methods to prepare 1,4-oxazin-2-ones and applications in the construction of polysubstituted pyridinesR15GM107702 · NIGMS · COLLEGE OF WILLIAM AND MARY · PI SCHEERER, JONATHAN R · 2014 to 2023
$987k
NIGMS NIH HHS R15 GM107702
6 · The paper itself

Abstract

This study reveals an alternative sequence for the synthesis of compounds that contain the pyrrolodiketopiperazine structural motif. Starting with a diketopiperazine precursor, a mild aldol condensation precedes pyrrole annulation and bicyclic ring fusion. The derived intermediate aldol condensation products, which bear either a protected carbonyl or a functionalized alkyne, can be cyclized to the pyrrolodiketopiperazine by protic or gold Lewis acid catalysis.

Indexed as

DiketopiperazinesPyrrolesAlkynesCatalysisCyclizationAlkynesDiketopiperazinesPyrroles

Identifiers

PMID32602717
PMCPMC7464856

What OpenQuestion holds

Textmetadata
LicenceTDM
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.