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Record W2266071708 · doi:10.1002/slct.201701817

Model Studies toward the Total Synthesis of Thebaine by an Intramolecular Cycloaddition Strategy

2017· article· en· W2266071708 on OpenAlexaff
Petr Koukal, Josef Hájíček, Setu Gupta, Tomáš Hudlický

Bibliographic record

VenueChemistrySelect · 2017
Typearticle
Languageen
FieldChemistry
TopicAsymmetric Synthesis and Catalysis
Canadian institutionsBrock University
FundersUniverzita Karlova v Praze
KeywordsCycloadditionIntramolecular forceThebaineChemistryBenzofuranIntermolecular forceDieneThermal decompositionCombinatorial chemistryOrganic chemistryMedicinal chemistryComputational chemistryCatalysisMoleculeBiology

Abstract

fetched live from OpenAlex

Abstract Three model compounds required for an approach to thebaine by intramolecular [4+2] cycloaddition were prepared. In the first two cases the anticipated cycloaddition products were obtained under thermal conditions. Thermolysis of the third, more advanced model compound, afforded products resulting from rearrangements and/or elimination. A study of analogous intra‐ and intermolecular reactions using benzofuran as dienophile and various electron‐poor and electron‐rich dienes (pyridazines, pyranones, Danishefsky diene) was undertaken.

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.

How this classification was reachedexpand

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)0.000
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 score0.040
Threshold uncertainty score0.791

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.001
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0010.000
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 head0.034
GPT teacher head0.284
Teacher spread0.250 · 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

Classification

machine, unvalidated

Machine predicted; a candidate call from one teacher head, not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designBench or experimental
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations9
Published2017
Admission routes1
Has abstractyes

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