Results 1 to 10 of about 3,654 (228)

Spirooxindole: A Versatile Biologically Active Heterocyclic Scaffold [PDF]

open access: yesMolecules, 2023
Spirooxindoles occupy an important place in heterocyclic chemistry. Many natural spirooxindole-containing compounds have been identified as bio-promising agents. Synthetic analogs have also been synthesized utilizing different pathways.
Siva S. Panda   +3 more
doaj   +5 more sources

Nanoformulation of Spirooxindole and Methods for Treating Hepatocellular Carcinoma [PDF]

open access: goldPharmaceutics
Objectives: This in vivo study introduces a newly developed spirooxindole derivative that is deemed safe and effective as a potential targeted therapy for various cancers.
Assem Barakat   +6 more
doaj   +4 more sources

Discovery of a cytochrome P450 enzyme catalyzing the formation of spirooxindole alkaloid scaffold [PDF]

open access: yesFrontiers in Plant Science, 2023
Spirooxindole alkaloids feature a unique scaffold of an oxindole ring sharing an atom with a heterocyclic moiety. These compounds display an extensive range of biological activities such as anticancer, antibiotics, and anti-hypertension.
Tuan-Anh M. Nguyen   +5 more
doaj   +3 more sources

Novel spirooxindole-triazole derivatives: unveiling [3+2] cycloaddition reactivity through molecular electron density theory and investigating their potential cytotoxicity against HepG2 and MDA-MB-231 cell lines [PDF]

open access: yesFrontiers in Chemistry
A novel analogue of hybrid spirooxindoles was synthesized employing a systematic multistep synthetic approach. The synthetic protocol was designed to obtain a series of spirooxindole derivatives incorporating triazolyl-s-triazine framework via [3 + 2 ...
Ihab Shawish   +11 more
doaj   +3 more sources

Natural-Product-Inspired Microwave-Assisted Synthesis of Novel Spirooxindoles as Antileishmanial Agents: Synthesis, Stereochemical Assignment, Bioevaluation, SAR, and Molecular Docking Studies [PDF]

open access: goldMolecules, 2023
Leishmaniasis is a neglected tropical disease, and there is an emerging need for the development of effective drugs to treat it. To identify novel compounds with antileishmanial properties, a novel series of functionalized spiro[indoline-3,2′-pyrrolidin]-
Nawal Kishore Sahu   +12 more
doaj   +4 more sources

The Therapeutic Potential of Spirooxindoles in Cancer: A Focus on p53–MDM2 Modulation [PDF]

open access: goldPharmaceuticals
The p53, often referred to as the “guardian of the genome”, is a well-established tumor-suppressor protein that plays a critical role in regulating the cell cycle, DNA repair, differentiation, and apoptosis, with its activity primarily modulated by the ...
Adel S. Girgis   +8 more
doaj   +3 more sources

Activation of p53 signaling and regression of breast and prostate carcinoma cells by spirooxindole-benzimidazole small molecules [PDF]

open access: goldFrontiers in Pharmacology
This study discusses the synthesis and use of a new library of spirooxindole-benzimidazole compounds as inhibitors of the signal transducer and activator of p53, a protein involved in regulating cell growth and cancer prevention.
Assem Barakat   +8 more
doaj   +4 more sources

Antibacterial spirooxindole alkaloids from Penicillium brefeldianum inhibit dimorphism of pathogenic smut fungi [PDF]

open access: goldFrontiers in Microbiology, 2022
Three new antibacterial spirooxindole alkaloids, spirobrefeldins A–C (1–3), together with four known analogs, spirotryprostatin M (4), spirotryprostatin G (5), 12β-hydroxyverruculogen TR-2 (6), and 12α-hydroxyverruculogen TR-2 (7), were isolated from ...
Huajun Shi   +7 more
semanticscholar   +2 more sources

Optimized spirooxindole-pyrazole hybrids targeting the p53-MDM2 interplay induce apoptosis and synergize with doxorubicin in A549 cells. [PDF]

open access: yesSci Rep, 2023
Recently, cancer research protocols have introduced clinical-stage spirooxindole-based MDM2 inhibitors. However, several studies reported tumor resistance to the treatment.
Islam MS   +11 more
europepmc   +2 more sources

Structural basis of the stereoselective formation of the spirooxindole ring in the biosynthesis of citrinadins

open access: yesNature Communications, 2021
Prenylated indole alkaloids contain spirooxindole rings with a 3R or 3S carbon stereocenter, which determines their bioactivities, but the biocatalytic mechanism controlling the 3R- or 3S-spirooxindole formation was unclear.
Zhiwen Liu   +12 more
doaj   +2 more sources

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