Synthesis and characterization of (E)-N-carbamimidoyl -4 and (E)-4- benzenesulfonamides; biological study, DFT, molecular docking, and ADMET predictions
Why this work is in the frame
A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.
Bibliographic record
Abstract
Sulphonamide Schiff bases (L1 and L2) containing imidazole nuclei have been synthesized and evaluated for their antimicrobial and antioxidant activity. Sulfaguanidine and sulfamerazine were condensed with 4-methyl-5-imidazolecarboxalehyde to obtain ligands L1 and L2, respectively. The compounds were characterized by FT-IR, 1H NMR, 13C NMR, UV-Vis, CHNS, and MALDI-TOF mass spectral data. The antimicrobial activity of the sulphonamide-derived Schiff bases was conducted using agar well diffusion against S. aureus, B. substilis, E. Coli, Salmonella spp., and Candida spp. Similarly, the free radicals scavenging activity of the compounds has been evaluated at 20 – 100 μg/mL using DPPH (1,1’-diphenyl-2-picryl-hydrazil), nitric oxide, and hydrogen peroxide antioxidant assays. Both compounds exhibited moderate activity against Salmonella spp. However, L1 exhibited higher radical scavenging ability than L2 against NO free radicals at low to high concentrations with IC50 values of 84.50 and 101.59 μg/mL for L1 and L2, respectively. Ligand L2 was, however, more active than L1 against H2O2 free radicals at low concentrations (20 – 60 μg/mL). The optimized geometries of the compounds were docked at the active sites of cytochrome oxidase, myeloperoxidase, NADPH oxidase, xanthine oxidase, dihydropteroate synthase (DHPS), and dihydrofolate reductase (DHFR) proteins.
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.
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 | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 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