# Design, synthesis, characterization, pharmacological evaluation and in silico ADMET and molecular docking and dynamics simulations of a novel series of N-substituted pyrazole from chalcone derivatives

**Authors:** Hend N. Hafez, Haleema Y. Otaif, Basmah H. Alshammari, Norah S. Alhebshe, Ahmed F. El-Sayed, Hebat-Allah S. Abbas, Reda A. Ammar

PMC · DOI: 10.1038/s41598-026-38237-9 · Scientific Reports · 2026-03-01

## TL;DR

Researchers created new compounds with strong antibacterial and anti-inflammatory properties, outperforming existing drugs in some cases.

## Contribution

A novel series of N-substituted pyrazole derivatives with dual antibacterial and anti-inflammatory activity is introduced.

## Key findings

- Compounds 4c, 5c, and 12 showed superior antibacterial potency compared to Levofloxacin.
- 5c and 12 demonstrated potent anti-inflammatory activity surpassing Celecoxib with reduced ulcerogenicity.
- In-silico ADMET analysis confirmed favorable drug-like properties and low toxicity for compound 4c.

## Abstract

A novel series of N-pyrazolyl-thienopyrimidine and pyridopyrimidine hybrids was synthesized and characterized using spectroscopic methods. Compounds 4c, 5c, and 12 exhibited superior antibacterial potency compared to Levofloxacin, with molecular docking revealing strong binding to key bacterial targets (e.g., DNA gyrase, Neuraminidase). In-silico ADMET analysis confirmed favorable drug-like properties and low toxicity for 4c, supported by stable molecular dynamics interactions. Additionally, 5c and 12 demonstrated potent anti-inflammatory activity surpassing Celecoxib, with reduced ulcerogenicity. These findings introduce a promising new class of dual-action agents for antibacterial and anti-inflammatory drug development.

The online version contains supplementary material available at 10.1038/s41598-026-38237-9.

## Linked entities

- **Chemicals:** Levofloxacin (PubChem CID 149096), Celecoxib (PubChem CID 2662)

## Full-text entities

- **Genes:** KPC-2 [NCBI Gene 13914015], DHPS [NCBI Gene 13906535], NOS2 (nitric oxide synthase 2) [NCBI Gene 4843] {aka HEP-NOS, INOS, NOS, NOS2A}, ALOX5 (arachidonate 5-lipoxygenase) [NCBI Gene 240] {aka 5-LO, 5-LOX, 5LPG, LOG5}, Dihydropteroate synthase [NCBI Gene 28378951]
- **Diseases:** microbial infections (MESH:D015163), hemorrhages (MESH:D006470), reproductive toxicity (MESH:D060737), cardiotoxic (MESH:D066126), Inflammation (MESH:D007249), Edema (MESH:D004487), insomnia (MESH:D007319), tumor (MESH:D009369), Klebsiella pneumonia (MESH:D007710), vascular diseases (MESH:D014652), oral (MESH:D020820), bacterial infections (MESH:D001424), depression (MESH:D003866), tumorigenic (MESH:D002471), Streptococcus pneumonia (MESH:D011008), oral toxicity (MESH:D064420), erosions (MESH:D014077), ulcer (MESH:D014456), infections (MESH:D007239), toxemia (MESH:D014115), COVID-19 (MESH:D000086382), bacteremia (MESH:D016470)
- **Chemicals:** Base (MESH:D009711), isoflurane (MESH:D007530), zubrin (MESH:C073135), Pyrazofurin (MESH:C002997), carbapenem (MESH:D015780), CDPPB (MESH:C494553), Levofloxacin (MESH:D064704), fezolamine (MESH:C047153), water (MESH:D014867), pyrido[2,3-d]pyrimidine (MESH:C000629091), D2O (MESH:D017666), sulfaphenazole (MESH:D013426), cyclohexane (MESH:C506365), EtOH (MESH:D000431), aldehydes (MESH:D000447), pyrimidine (MESH:C030986), isolan (MESH:C008186), NaOH (MESH:D012972), 13C (MESH:C000615229), 1H pyrazole (MESH:C031280), thieno[2,3-d]pyrimidine (MESH:C000601850), AMES (MESH:C017501), benzimidazole (MESH:C031000), KBr (MESH:C039004), HCl (MESH:D006851), acetic acid (MESH:D019342), Pi (MESH:D010716), O (MESH:D010100), carrageenan (MESH:D002351), Fipronil (MESH:C082360), chalcone (MESH:D002599), silica gel (MESH:D058428), Chalcones (MESH:D047188), indiplon (MESH:C469870), metal (MESH:D008670), methanol (MESH:D000432), agar (MESH:D000362), hydrazine (MESH:C029424), C (MESH:D002244), N (MESH:D009584), Nystatin (MESH:D009761), KOH (MESH:C029943), OH (MESH:C031356), -thiophene (MESH:D013876), ATP (MESH:D000255), piperidine (MESH:C032727), triazoles (MESH:D014230), pyrimidines (MESH:D011743), carboxy methylcellulose (MESH:D002266), DMSO (MESH:D004121), Ar (MESH:D001128), folate (MESH:D005492), ice (MESH:D007053), halogen (MESH:D006219), Tween 80 (MESH:D011136), Hyd (MESH:D006918), 2-acetyl-thiophene (MESH:C508419), H (MESH:D006859), hydrazide (MESH:D006834), Lonazolac (MESH:C017472)
- **Species:** aureus [taxon 46170], Salmonella enterica subsp. enterica serovar Typhimurium (no rank) [taxon 90371], Streptococcus pneumoniae (species) [taxon 1313], Bacillus subtilis (species) [taxon 1423], Escherichia coli (E. coli, species) [taxon 562], Klebsiella pneumoniae (species) [taxon 573], Mus musculus (house mouse, species) [taxon 10090], Klebsiella pneumoniae subsp. pneumoniae (subspecies) [taxon 72407], Homo sapiens (human, species) [taxon 9606], Staphylococcus aureus (species) [taxon 1280], Rattus norvegicus (brown rat, species) [taxon 10116], Bacteria Latreille et al. 1825 (Bacteria stick insect, genus) [taxon 629395]
- **Cell lines:** ATCC 26,845 — Homo sapiens (Human), Induced pluripotent stem cell (CVCL_JS55), 16,832 — Homo sapiens (Human), Acute leukemia of ambiguous lineage, Cancer cell line (CVCL_F945), 27,685 — Homo sapiens (Human), Hypertrophic cardiomyopathy, Induced pluripotent stem cell (CVCL_LL31), ATCC 28,935 — Homo sapiens (Human), Finite cell line (CVCL_V785), Caco-2 — Homo sapiens (Human), Colon adenocarcinoma, Cancer cell line (CVCL_0025), 1AD4-DH5 — Homo sapiens (Human), Age-related macular degeneration-4, Induced pluripotent stem cell (CVCL_WP93)

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## Figures

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## References

2 references — full list in the complete paper: https://tomesphere.com/paper/PMC12953870/full.md

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Source: https://tomesphere.com/paper/PMC12953870