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| brucine | |
|---|---|
| Name | Brucine |
| Formula | C23H26N2O4 |
| Molar mass | 394.46 g·mol−1 |
| CAS number | 357-57-3 |
| Appearance | white crystalline alkaloid |
brucine Brucine is a naturally occurring indole alkaloid structurally related to strychnine and found in several plant species. It has a rigid polycyclic scaffold with multiple stereocenters and notable biological activity, historically studied across organic chemistry, pharmacology, and forensic science. Researchers in institutions such as University of Oxford, Harvard University, Max Planck Society, and Institut Pasteur have examined its synthesis, biological effects, and applications.
Brucine's molecular architecture features an indole alkaloid core fused to multiple rings, containing tertiary amine and methoxy substituents; chemists at Massachusetts Institute of Technology, California Institute of Technology, ETH Zurich, University of Cambridge, and Stanford University have analyzed its stereochemistry using NMR, X-ray crystallography, and computational methods. Structural elucidation involved contributors from Royal Society of Chemistry publications and spectral databases curated by teams at American Chemical Society and Deutsche Forschungsgemeinschaft. Organic synthesis strategies reference historic work by laboratories at Bell Laboratories and contemporary total syntheses from groups at Columbia University and University of Tokyo.
Brucine is naturally extracted from the seeds and bark of species in the genus Strychnos, notably Strychnos nux-vomica and Strychnos ignatii, plants documented by botanists at Kew Gardens and collected in regions studied by expeditions associated with Royal Geographical Society, Smithsonian Institution, and colonial-era collections archived at British Museum. Early isolation employed chromatography techniques developed in laboratories at Graham Perkin's era and modern separations use methods standardized at Institute of Organic Chemistry and Biochemistry and Rothamsted Research. Ethnobotanical records cross-referenced by researchers at University of California, Berkeley and Yale University link traditional uses to botanical surveys catalogued by Royal Botanic Gardens, Kew.
Total syntheses and semisynthetic routes to brucine have been reported by research groups at University of Illinois Urbana-Champaign, McGill University, University of Paris-Saclay, and Weizmann Institute of Science, often as case studies in complex alkaloid construction alongside works on strychnine by landmark teams. Key transformations emulate strategies from Robert Burns Woodward-era methodologies and later adaptations by synthetic chemists at Scripps Research Institute and Rudolf Nieuwenhuys collaborators. Production at scale has been limited; industrial alkaloid extraction is guided by protocols developed at pharmaceutical manufacturers such as Roche and chemical suppliers tracked in repositories curated by European Medicines Agency and Food and Drug Administration laboratories.
Pharmacological investigations by laboratories at National Institutes of Health, World Health Organization, Johns Hopkins University, and Karolinska Institutet have shown that brucine interacts with central nervous system targets producing stimulant and convulsant effects at toxic doses, paralleling profiles characterized for strychnine in toxicology texts. Toxicological assessments conducted under guidelines from Organisation for Economic Co-operation and Development and regulatory frameworks of European Commission indicate narrow therapeutic indices; clinical case reports catalogued in hospital series at Mayo Clinic, Cleveland Clinic, and Guy's Hospital document symptoms and management. Mechanistic studies referencing electrophysiology groups at Cold Spring Harbor Laboratory and Max Planck Institute for Brain Research implicate modulation of glycine receptor pathways analogous to observations in neuroscience research led by scientists at University College London.
Historically, brucine was explored as a research tool in stereochemical resolution and optical activity studies by chemists at University of Göttingen and for applications in analytical chemistry protocols refined at National Physical Laboratory. It has seen limited medicinal research in adjuvant contexts reviewed by teams at Imperial College London and University of Toronto. Forensic applications and poisoning cases have been investigated by coroners and forensic scientists affiliated with Scotland Yard, FBI Laboratory, and university forensic programs at Queen Mary University of London and University of Copenhagen; chromatographic detection methods were advanced by analysts at Royal Society of Chemistry-affiliated labs and instrumentation manufacturers like Agilent Technologies and Waters Corporation.
The isolation and characterization of brucine date to 19th-century natural product chemistry, with early reports by chemists working in the milieu of Justus von Liebig, Friedrich Wöhler, and contemporaries at laboratories such as University of Jena and University of Göttingen. Subsequent structural and synthetic milestones were achieved in eras associated with influential figures like Robert Robinson and Robert Burns Woodward, with archival correspondence preserved in collections at British Library and institutional histories at Royal Institution. The compound's role in 19th- and 20th-century chemical education and toxicology is chronicled alongside landmark cases and publications housed in libraries at Library of Congress and medical archives at Wellcome Collection.