Synthesis and molecular recognition of the uridine-containing derivative of <i>p</i>-tert-butylcalix[4]arene
Bibliographic record
Abstract
The new uridine-containing derivative of p-tert-butylcalix[4]arene 5,11,17,23-tetra-tert-butyl-25,26,27-trihydroxyl-28-oxyuridinecalix[4]arene (CU) was synthesized and characterized by 1 H NMR, 13 C NMR, IR, EI-MS, and ESI-MS spectra. By the aid of UVvis spectra, the molecular recognition of CU was studied. The hypochromic effect in UVvis spectra showed the obvious molecular recognition of CU to ATP. This recognition is actually the hydrogen bond interaction between the uracil group of CU and the base radical of ATP. The association constant between CU and adenine was determined by UV titration at low concentrations.Key words: calixarene, uridine, molecular recognition, UVvis spectra.
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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 | 0.001 |
| 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 | 0.000 | 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".