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Record W3025648639 · doi:10.31487/j.ajmc.2020.01.05

Amberlite IR-120H Catalyzed Synthesis of 1,3-Diphenylpyrazolechromenoquinolin-6-one Compounds and Their Biological Evaluation

2020· article· en· W3025648639 on OpenAlex

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

fundA Canadian funder is recorded on the work.
no affNo Canadian affiliation: this work is invisible to an affiliation-only frame.
No Canadian affiliation. An affiliation-only frame, the usual design, would never have seen this work. It is one of the works that make the case for inverting the frame.

Bibliographic record

VenueAmerican Journal of Medicinal Chemistry · 2020
Typearticle
Languageen
FieldChemistry
TopicMulticomponent Synthesis of Heterocycles
Canadian institutionsnot available
FundersKing Saud UniversityInstitute of Population and Public HealthDepartment of Science and Technology, Ministry of Science and Technology, India
KeywordsAmberliteCircular dichroismCatalysisChemistryIntercalation (chemistry)CytotoxicityTopoisomeraseCombinatorial chemistryDNANuclear chemistryStereochemistryOrganic chemistryBiochemistryIn vitro

Abstract

fetched live from OpenAlex

A series of 1,3-diphenylpyrazole-chromenoquinolin-6-one compounds were designed and synthesized by using a greener and recyclable heterogeneous Amberlite IR-120H resin as a catalyst, in the presence of ethanol reflux conditions. Interestingly, the catalyst can be recovered after completion of the reaction and can be reused without loss of catalytic property. Therefore, this method provides a green and environmentally benign much improved protocol for the synthesis of 1,3-diphenylpyrazolechromenoquinolin-6-one compounds. The synthesized library of thirty compounds were tested against their cytotoxicity; moreover, the compounds 5s and 5t exhibited potential cytotoxic activity with IC50 values of 1.22 and 1.64 µM, respectively, on MCF-7 cancer cells. The biophysical studies such as UV-visible, fluorescence and circular dichroism studies indicate that these compounds possess good DNA intercalation ability. In addition, these compounds efficiently inhibit topoisomerase I activity. Molecular docking and viscosity studies support that these compounds exhibited intercalative mode of binding with DNA.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.001
metaresearch head score (Gemma)0.001
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: Bench or experimental
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.034
Threshold uncertainty score0.973

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0010.001
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0010.000
Bibliometrics0.0000.000
Science and technology studies0.0000.001
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0000.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.035
GPT teacher head0.265
Teacher spread0.231 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it