Subtopic Deep Dive
Pyrroles in Natural Product Synthesis
Research Guide
What is Pyrroles in Natural Product Synthesis?
Pyrroles in Natural Product Synthesis applies pyrrole heterocycles as core structural motifs in total syntheses of marine alkaloids like lamellarins, ningalin, and roseophilin.
This subtopic focuses on stereoselective pyrrole assembly for bioactive natural product analogs from marine sources. Key reviews cover over 50 lamellarins isolated since 1985 (Fan et al., 2007, 1047 citations). Total syntheses demonstrate palladium-catalyzed pyrrole formation for macrotricyclic cores (Fürstner and Weintritt, 1998, 192 citations).
Why It Matters
Pyrrole-based syntheses validate methodologies by assembling complex targets like antitumor roseophilin, enabling access to scarce marine alkaloids (Fürstner and Weintritt, 1998). Lamellarins show anticancer potential through topoisomerase inhibition, guiding analog development (Bailly, 2015; Fan et al., 2007). These routes advance biomimetic strategies for drug discovery, with pyrrole modifications enhancing selectivity (Li Petri et al., 2020).
Key Research Challenges
Stereoselective Pyrrole Assembly
Achieving stereocontrol in multi-substituted pyrroles for chiral natural products remains difficult. Fürstner and Weintritt (1998) used palladium catalysis for ansa-bridged pyrroles in roseophilin, but scaling limits analogs. Baran et al. (2004) addressed enantioselectivity in ketorolac via direct pyrrole-carbonyl coupling.
Macrotricyclic Core Construction
Forming strained macrotricyclic pyrrole architectures in lamellarins demands novel cyclization tactics. Fan et al. (2007) detail structural complexity from marine sources. Sustainable catalysis like Michlik and Kempe (2013) aids precursor synthesis but requires adaptation for totalsyntheses.
Bioactivity Optimization
Modifying pyrroles for target selectivity in alkaloids challenges structure-activity relationships. Bailly (2015) reviews lamellarin anticancer properties, while Li Petri et al. (2020) highlight selectivity issues. Negri et al. (2004) note enaminoketone intermediates' role in bioactive heterocycles.
Essential Papers
Lamellarins and Related Pyrrole-Derived Alkaloids from Marine Organisms
Hui Fan, Jiangnan Peng, Mark T. Hamann et al. · 2007 · Chemical Reviews · 1.0K citations
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTADDITION / CORRECTIONThis article has been corrected. View the notice.Lamellarins and Related Pyrrole-Derived Alkaloids from Marine OrganismsHui Fan, Jia...
Pyrrole: a resourceful small molecule in key medicinal hetero-aromatics
Varun Bhardwaj, Divya Gumber, Vikrant Abbot et al. · 2015 · RSC Advances · 659 citations
Pyrrole is widely known as a biologically active scaffold which possesses a diverse nature of activities.
A sustainable catalytic pyrrole synthesis
Stefan Michlik, Rhett Kempe · 2013 · Nature Chemistry · 478 citations
Bioactive pyrrole-based compounds with target selectivity
Giovanna Li Petri, Virginia Spanò, Roberto Spatola et al. · 2020 · European Journal of Medicinal Chemistry · 237 citations
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...
Total Synthesis of Roseophilin
Alois Fürstner, Holger Weintritt · 1998 · Journal of the American Chemical Society · 192 citations
The first total synthesis of the antitumor agent roseophilin 1 is reported. Its intricate macrotricyclic core 2 is obtained by means of a new palladium-catalyzed manifold for the formation of ansa-...
Recent development in preparation reactivity and biological activity of enaminoketones and enaminothiones and their utilization to prepare heterocyclic compounds
Giuseppina Negri, Concetta Kascheres, Albert Kascheres · 2004 · Journal of Heterocyclic Chemistry · 178 citations
Abstract Enaminoketones and esters are gaining increased interest, particularly cyclic‐β‐enaminoesters, which are known as important intermediates for the synthesis of heterocycles and natural prod...
Reading Guide
Foundational Papers
Start with Fan et al. (2007, 1047 citations) for lamellarin structures, then Fürstner and Weintritt (1998, 192 citations) for total synthesis precedent, followed by Baran et al. (2004) for pyrrole coupling tactics.
Recent Advances
Study Bailly (2015) for lamellarin bioactivity, Li Petri et al. (2020, 237 citations) for selectivity advances, and Basha et al. (2022) for pyrrole analog potentials.
Core Methods
Core techniques include palladium-catalyzed ansa-pyrrole formation (Fürstner and Weintritt, 1998), direct pyrrole-carbonyl enantioselective coupling (Baran et al., 2004), and sustainable pyrrole catalysis (Michlik and Kempe, 2013).
How PapersFlow Helps You Research Pyrroles in Natural Product Synthesis
Discover & Search
Research Agent uses searchPapers('lamellarin total synthesis pyrrole') to retrieve Fan et al. (2007, 1047 citations), then citationGraph reveals 50+ downstream syntheses and findSimilarPapers uncovers Fürstner and Weintritt (1998) roseophilin route. exaSearch scans for ningalin analogs across 250M+ OpenAlex papers.
Analyze & Verify
Analysis Agent applies readPaperContent on Fürstner and Weintritt (1998) to extract palladium-catalyzed steps, verifyResponse with CoVe cross-checks stereoselectivity claims against Baran et al. (2004), and runPythonAnalysis parses reaction yields into pandas DataFrames for statistical comparison; GRADE scores methodological rigor.
Synthesize & Write
Synthesis Agent detects gaps in stereoselective pyrrole routes post-Fan et al. (2007), flags contradictions in bioactivity data from Bailly (2015), and uses exportMermaid for synthesis pathway diagrams. Writing Agent employs latexEditText for scheme revisions, latexSyncCitations to integrate 10+ references, and latexCompile for publication-ready reviews.
Use Cases
"Plot yield distributions from pyrrole syntheses in lamellarin papers"
Research Agent → searchPapers('lamellarin pyrrole synthesis') → Analysis Agent → readPaperContent (Fan et al., 2007) + runPythonAnalysis (NumPy/pandas yield stats + matplotlib histogram) → researcher gets yield comparison chart.
"Draft total synthesis review of roseophilin with schemes"
Research Agent → citationGraph (Fürstner 1998) → Synthesis Agent → gap detection → Writing Agent → latexEditText (intro) → latexSyncCitations (10 refs) → latexCompile → researcher gets compiled LaTeX PDF with schemes.
"Find code for computational pyrrole modeling in natural products"
Research Agent → paperExtractUrls (Michlik 2013) → paperFindGithubRepo → githubRepoInspect (QM calculations) → researcher gets verified GitHub repos with DFT scripts for pyrrole reactivity.
Automated Workflows
Deep Research workflow scans 50+ papers via searchPapers on 'pyrrole marine alkaloids', structures lamellarin synthesis report with citationGraph. DeepScan's 7-step chain verifies Fan et al. (2007) structures with CoVe checkpoints and runPythonAnalysis on bioactivity data. Theorizer generates hypotheses for pyrrole bioisosteres from Bailly (2015) and Li Petri et al. (2020).
Frequently Asked Questions
What defines pyrroles in natural product synthesis?
Pyrroles serve as core motifs in total syntheses of marine alkaloids like lamellarins and roseophilin, using stereoselective methods (Fan et al., 2007; Fürstner and Weintritt, 1998).
What are key methods used?
Palladium-catalyzed pyrrole formation for macrotricycles (Fürstner and Weintritt, 1998) and direct pyrrole-carbonyl coupling for enantioselective routes (Baran et al., 2004) are prominent.
What are the most cited papers?
Fan et al. (2007, 1047 citations) reviews lamellarins; Fürstner and Weintritt (1998, 192 citations) reports roseophilin synthesis.
What open problems exist?
Scaling stereoselective macrotricyclic assemblies and optimizing bioactivity selectivity in pyrrole analogs remain unsolved (Li Petri et al., 2020; Bailly, 2015).
Research Synthesis and Characterization of Pyrroles with AI
PapersFlow provides specialized AI tools for Chemistry researchers. Here are the most relevant for this topic:
AI Literature Review
Automate paper discovery and synthesis across 474M+ papers
Paper Summarizer
Get structured summaries of any paper in seconds
Deep Research Reports
Multi-source evidence synthesis with counter-evidence
Code & Data Discovery
Find datasets, code repositories, and computational tools
See how researchers in Chemistry use PapersFlow
Field-specific workflows, example queries, and use cases.
Start Researching Pyrroles in Natural Product Synthesis with AI
Search 474M+ papers, run AI-powered literature reviews, and write with integrated citations — all in one workspace.
See how PapersFlow works for Chemistry researchers