Crystal structure of diethyl 2-amino-5-{4-[bis(4-methylphenyl)amino]benzamido}thiophene-3,4-dicarboxylate
Why this work is in the frame
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Bibliographic record
Abstract
In the title compound, C 31 H 31 N 3 O 5 S, the regioselective substitution of the thiophene is confirmed with the amine and the amide at the 2- and 5-positions, respectively. In the molecule, the thiophene ring is twisted by 12.82 (3)° with respect to the aromatic ring of the benzamido group. Intramolecular N—H...O hydrogen bonds are present involving the N atoms of the primary amine and the amide groups, forming S (6) ring motifs. In the crystal, centrosymmetrically related molecules are linked by pairs of N—H...O hydrogen bonds involving the amide carbonyl O atoms and the primary amine N atoms to form dimers of R 2 2 (16) ring motif.
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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 | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.002 | 0.002 |
| Bibliometrics | 0.002 | 0.004 |
| Science and technology studies | 0.001 | 0.002 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.005 | 0.002 |
| Research integrity | 0.001 | 0.003 |
| Insufficient payload (model declined to judge) | 0.004 | 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 it