Evidence map›Paper›PMID 33425854›Full record

ArticleFrontiers in chemistry2020

The Role of Norrish Type-I Chemistry in Photoactive Drugs: An

Spencer J Léger, Barbara Marchetti, Michael N R Ashfold, Tolga N V Karsili

Abstract read
In one paragraph

Article in Frontiers in chemistry, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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.

Spencer J LégerDepartment of Chemistry, University of Louisiana at Lafayette, Lafayette, LA, United States.
Barbara MarchettiDepartment of Chemistry, University of Louisiana at Lafayette, Lafayette, LA, United States.
Michael N R AshfoldSchool of Chemistry, University of Bristol, Bristol, United Kingdom.
Tolga N V KarsiliDepartment of Chemistry, University of Louisiana at Lafayette, Lafayette, LA, United States.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We present a contemporary mechanistic description of the light-driven conversion of cyclopropenone containing enediyne (CPE) precusors to ring-opened species amenable to further Bergman cyclization and formation of stable biradical species that have been proposed for use in light-induced cancer treatment. The transformation is rationalized in terms of (purely singlet state) Norrish type-I chemistry, wherein photoinduced opening of one C-C bond in the cyclopropenone ring facilitates non-adiabatic coupling to high levels of the ground state, subsequent loss of CO and Bergman cyclization of the enediyne intermediate to the cytotoxic target biradical species. Limited investigations of substituent effects on the ensuing photochemistry serve to vindicate the experimental choices of Popik and coworkers (

Indexed as

photoactive drugsphotochemistryphotodissociationphotophysicsphotostabilityphysical organic chemistry

Identifiers

PMID33425854
PMCPMC7793749

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.