Subtopic Deep Dive
Bioactivity Evaluation of Indolizine Derivatives
Research Guide
What is Bioactivity Evaluation of Indolizine Derivatives?
Bioactivity evaluation of indolizine derivatives assesses anticancer, anti-inflammatory, antimicrobial, and antiviral potencies through in vitro and in vivo assays correlating structural modifications with biological outcomes.
Researchers test indolizine compounds for COX-2 inhibition (Shrivastava et al., 2017, 69 citations), HIV-1 VIF-ElonginC inhibition (Huang et al., 2013, 49 citations), and larvicidal activity (Chandrashekharappa et al., 2017, 50 citations). In silico modeling predicts anti-tumor efficacy of pyrido-fused analogues (Dasmahapatra et al., 2022, 90 citations). Over 20 papers from 2002-2022 document these evaluations.
Why It Matters
Indolizine derivatives inhibit cyclooxygenase and lipoxygenase for anti-inflammatory effects (Shrivastava et al., 2017). They block HIV-1 replication via VIF-ElonginC disruption (Huang et al., 2013) and show larvicidal potency against Anopheles arabiensis (Chandrashekharappa et al., 2017). Anticancer activity arises from β-catenin inhibition and p53 activation (Moon et al., 2015), positioning indolizines as privileged scaffolds in drug discovery.
Key Research Challenges
Correlating Structure-Activity
Linking electronic and steric effects to potency remains difficult due to diverse substituents. Shrivastava et al. (2017) evaluated COX inhibitors but noted variable dual inhibition. In silico predictions require validation (Dasmahapatra et al., 2022).
Assay Standardization
In vitro and in vivo assays vary across studies, complicating comparisons. Chandrashekharappa et al. (2017) used larvicidal tests, while Moon et al. (2015) focused on cancer cell lines. Huang et al. (2013) highlighted HIV-specific challenges.
Scalable Synthesis-Bioassay
Integrating synthesis with high-throughput screening limits lead optimization. Darwish (2008) synthesized antimicrobials but lacked potency data. Sadowski et al. (2016) reviewed synthesis advances needing bioactivity pairing.
Essential Papers
Recent advances in the synthesis of indolizines and their π-expanded analogues
Bartłomiej Sadowski, Jan Klajn, Daniel T. Gryko · 2016 · Organic & Biomolecular Chemistry · 215 citations
Synthesis of indolizines developed during the last decade is reviewed, with special emphasis given to densely functionalized architectures, breakthrough strategies, compounds bearing electron-donat...
In-silico molecular modelling, MM/GBSA binding free energy and molecular dynamics simulation study of novel pyrido fused imidazo[4,5-c]quinolines as potential anti-tumor agents
Upala Dasmahapatra, Kiran Kumar Chitluri, Soumyadip Das et al. · 2022 · Frontiers in Chemistry · 90 citations
With an alarming increase in the number of cancer patients and a variety of tumors, it is high time for intensive investigation on more efficient and potent anti-tumor agents. Though numerous agent...
Iron‐Catalyzed Carbenoid‐Transfer Reactions of Vinyl Sulfoxonium Ylides: An Experimental and Computational Study
Janakiram Vaitla, Annette Bayer, Kathrin H. Hopmann · 2018 · Angewandte Chemie International Edition · 74 citations
Abstract A method for the generation of unprecedented vinyl carbenoids from sulfoxonium ylides has been developed and applied in the synthesis of a diverse array of heterocycles such as indolizines...
Design, synthesis, and biological evaluation of some novel indolizine derivatives as dual cyclooxygenase and lipoxygenase inhibitor for anti-inflammatory activity
Sushant K. Shrivastava, Pavan Srivastava, Robin Bandresh et al. · 2017 · Bioorganic & Medicinal Chemistry · 69 citations
Facile Synthesis of Heterocycles via 2-Picolinium Bromide and Antimicrobial Activities of the Products
Elham S. Darwish · 2008 · Molecules · 64 citations
The 2-picolinium N-ylide 4, generated in situ from the N-acylmethyl-2-picolinium bromide 3, underwent cycloaddition to N-phenylmaleimide or carbon disulfideto give the corresponding cycloadducts 6 ...
Fluorescent Indolizine-b-Cyclodextrin Derivatives for the Detection of Volatile Organic Compounds
Matthieu Bécuwe, David Landy, François Delattre et al. · 2008 · Sensors · 53 citations
This paper presents the synthesis, the structural determination and the sensing capabilities toward Volatile Organic Compounds (VOCs) of a new class of fluorescent indolizine-cyclodextrin sensors. ...
One-pot microwave assisted synthesis and structural elucidation of novel ethyl 3-substituted-7-methylindolizine-1-carboxylates with larvicidal activity against Anopheles arabiensis
Sandeep Chandrashekharappa, Katharigatta N. Venugopala, Susanta K. Nayak et al. · 2017 · Journal of Molecular Structure · 50 citations
Reading Guide
Foundational Papers
Start with Darwish (2008, 64 citations) for antimicrobial synthesis-evaluation baseline, then Huang et al. (2013, 49 citations) for antiviral mechanisms, as they establish core bioactivity assays.
Recent Advances
Study Shrivastava et al. (2017, 69 citations) for anti-inflammatory data, Chandrashekharappa et al. (2017, 50 citations) for larvicidal potency, and Dasmahapatra et al. (2022, 90 citations) for in silico advances.
Core Methods
Core techniques include COX-2 inhibition screening (Shrivastava et al., 2017), MM/GBSA binding energy calculations (Dasmahapatra et al., 2022), cell-based β-catenin/p53 assays (Moon et al., 2015), and larvicidal mortality counts (Chandrashekharappa et al., 2017).
How PapersFlow Helps You Research Bioactivity Evaluation of Indolizine Derivatives
Discover & Search
Research Agent uses searchPapers('bioactivity indolizine derivatives anticancer') to retrieve 20+ papers like Shrivastava et al. (2017), then citationGraph to map influences from Sadowski et al. (2016, 215 citations), and findSimilarPapers for Huang et al. (2013) analogues.
Analyze & Verify
Analysis Agent applies readPaperContent on Chandrashekharappa et al. (2017) to extract IC50 data, verifyResponse with CoVe against Moon et al. (2015) claims, and runPythonAnalysis to plot structure-activity trends via pandas regression on COX inhibition metrics with GRADE scoring for evidence strength.
Synthesize & Write
Synthesis Agent detects gaps in anti-inflammatory vs. anticancer overlaps across Shrivastava (2017) and Dasmahapatra (2022), while Writing Agent uses latexEditText for assay protocols, latexSyncCitations for 10+ references, and latexCompile for a review manuscript with exportMermaid diagrams of SAR networks.
Use Cases
"Extract IC50 values from indolizine COX inhibitors and run statistical analysis"
Research Agent → searchPapers → Analysis Agent → readPaperContent(Shrivastava 2017) → runPythonAnalysis(pandas correlation plot) → GRADE-verified SAR summary table.
"Write LaTeX section on HIV-inhibiting indolizines with citations"
Research Agent → citationGraph(Huang 2013) → Synthesis Agent → gap detection → Writing Agent → latexEditText → latexSyncCitations → latexCompile → PDF output.
"Find code for indolizine bioactivity simulations"
Research Agent → exaSearch('indolizine docking code') → Code Discovery → paperExtractUrls(Dasmahapatra 2022) → paperFindGithubRepo → githubRepoInspect → runnable MM/GBSA scripts.
Automated Workflows
Deep Research workflow scans 50+ indolizine papers via searchPapers → citationGraph → structured report on bioactivity trends from Darwish (2008) to Dasmahapatra (2022). DeepScan applies 7-step CoVe analysis to verify SAR claims in Shrivastava (2017). Theorizer generates hypotheses linking sterics to potency from Moon (2015) and Chandrashekharappa (2017).
Frequently Asked Questions
What defines bioactivity evaluation of indolizines?
It involves in vitro/in vivo assays for anticancer, anti-inflammatory, antimicrobial effects, correlating electronics/sterics with potency (Shrivastava et al., 2017; Moon et al., 2015).
What methods assess indolizine bioactivity?
COX/LOX inhibition assays (Shrivastava et al., 2017), HIV VIF-ElonginC binding (Huang et al., 2013), larvicidal tests (Chandrashekharappa et al., 2017), and in silico MM/GBSA (Dasmahapatra et al., 2022).
What are key papers?
Shrivastava et al. (2017, 69 citations) on dual COX/LOX inhibitors; Huang et al. (2013, 49 citations) on HIV inhibitors; Chandrashekharappa et al. (2017, 50 citations) on larvicides; Moon et al. (2015, 44 citations) on anticancer agents.
What open problems exist?
Standardizing assays across studies, scaling synthesis-bioassay integration, and predicting potency from π-expanded structures (Sadowski et al., 2016; Dasmahapatra et al., 2022).
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