Studying the Structure and Evaluating α‐Glucosidase Inhibition of Novel Acetamide Derivatives Incorporating 4‐Ethyl‐4 <i>H</i> ‐1,2,4‐Triazole Starting from 2‐(Naphthalen‐1‐yl)Acetic Acid
Bibliographic record
Abstract
Abstract This research aims to create innovative compounds that incorporate 1,2,4‐triazole and exhibit α‐glucosidase inhibitory potential. Similar to our previously reported series of N ‐aryl 2‐{[5‐(naphthalen‐1‐ylmethyl)‐4‐phenyl‐4 H ‐1,2,4‐triazol‐3‐yl]thio}acetamide compounds, we explore here 4‐ethyl instead of 4‐phenyl as substituent. The synthesis process effectively yielded these compounds, with the highest yield reaching up to 91 % for compound N ‐phenyl‐2‐{[5‐(naphthalen‐1‐ylmethyl)‐4‐ethyl‐4 H ‐1,2,4‐triazol‐3‐yl]thio}acetamide 5 a . Their structures were validated through various spectroscopic techniques such as IR, 1 H‐NMR, 13 C‐NMR, and HR‐MS spectra, and for compounds 3 , 5 d , and 5 e by X‐ray diffraction. In vitro experiments revealed that only compound 5 g , marked by a 3‐hydroxy substitution on the N ‐phenylacetamide moiety, demonstrated higher α‐glucosidase inhibitory potential (IC 50 =158.4±3.4 μM) compared to the positive control, acarbose (IC 50 =351.3±1.8 μM). Molecular docking studies also coincide with in vitro assay by uncovering a strong hydrogen bond with residue Asp1526 along with other hydrophobic interactions of compound 5 g in the α‐glucosidase binding pocket. Compound 5 g showed a free binding energy of −9.7 kcal/mol, contrasting with acarbose (−8.0 kcal/mol). Despite the modest biological activity, this research underscores the simplicity and convenience of the procedure for synthesizing 1,2,4‐triazole‐based compounds, and contributes a key feature to the structure‐activity relationship of the triazole scaffold in the α‐glucosidase pocket.
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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 | 0.001 | 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 | 0.001 |
| 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".