Calodendroside A: a taxifolin diglucoside from the stem bark of <i>Ochna calodendron</i>
Bibliographic record
Abstract
A new flavanone diglucoside, calodendroside A (1), was isolated from the methanolic extract of the stem bark of Ochna calodendron (Ochnaceae) and its structure elucidated as (2R,3R) taxifolin-3-O-glucosyl-(1> 2)-glucoside by means of chemical and spectroscopic evidence including 1 H- 1 H and 1 H- 13 C COSY NMR. The connection of the two sugar moities was determined by the use of the heteronuclear multiple bond connectivities experiment (HMBC). To our knowledge, the present report is the first describing the isolation of a flavonoid diglucoside from a member of the Ochnaceae family.Key words: Ochna calodendron, Ochnaceae, stem bark, flavanone diglucoside, calodendroside A.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot 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.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 0.000 |
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.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
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".