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Record W1973259599 · doi:10.1107/s1600536804026546

Arjunglucoside I chloromethane 0.25-solvate monohydrate

2004· article· en· W1973259599 on OpenAlexaff
Masood Parvez, Atta‐ur Rahman, M. Iqbal Choudhary, Seema Zareen, Nadeem M. Akhtar, Shahida Shujaat, F. N. Ngounou

Bibliographic record

VenueActa Crystallographica Section E Structure Reports Online · 2004
Typearticle
Languageen
FieldBiochemistry, Genetics and Molecular Biology
TopicNatural product bioactivities and synthesis
Canadian institutionsUniversity of Calgary
Fundersnot available
KeywordsMoietyChemistryIntramolecular forceRing (chemistry)PyranHydrogen bondCrystal structureCyclohexane conformationSolventIntermolecular forceCrystallographyStereochemistryMoleculeOrganic chemistry

Abstract

fetched live from OpenAlex

The crystal structure of the title compound (systematic name: β-d-gluco­pyran­osyl 2α,3β,19α,23-tetra­hydroxy­olean-12-en-28-oate chloro­methane 0.25-solvate monohydrate), C36H58O11·0.25CH3Cl·H2O, contains a triterpenyl moiety esterified with a gluco­pyran­osyl unit, a disordered mol­ecule of chloro­methane solvent with a partial site occupancy located about a twofold axis and a water mol­ecule of hydration. Three rings of the triterpenyl moiety adopt classical chair conformations, while one ring exhibits an envelope conformation and one has a flattened chair conformation. The gluco­pyran­osyl ring also adopts a chair conformation. The structure is stabilized by extensive intermolecular hydrogen bonds as well as an intramolecular interaction.

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)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesMeta-epidemiology (narrow)
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.695
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.001
Science and technology studies0.0000.000
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 head0.006
GPT teacher head0.225
Teacher spread0.219 · 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.

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

Citations4
Published2004
Admission routes1
Has abstractyes

Explore more

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