Selective Demethylation of Some Aconitine-Type Norditerpenoid Alkaloids

Demethylation of some aconitine-type norditerpenoid alkaloids was carried out with trimethylsilyl iodide and with HBr in glacial AcOH. Aconitine (10), cammaconine (23), delphinine (3), falconerine (18), lappaconitine (22), and talatizamine (24) afforded partially demethylated products. When methoxyl...

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Veröffentlicht in:	Journal of natural products (Washington, D.C.) D.C.), 1997-05, Vol.60 (5), p.439-443
Hauptverfasser:	Joshi, Balawant S, Srivastava, Santosh K, Barber, Angela D, Desai, Haridutt K, Pelletier, S. William
Format:	Artikel
Sprache:	eng
Schlagworte:	Aconitine - chemistry ACONITUM aconitum columbianum ACONITUM FALCONERI ALCALOIDE ALCALOIDES Alicyclic compounds, terpenoids, prostaglandins, steroids ALKALOIDS Alkaloids - chemistry cammaconine CHEMICAL STRUCTURE Chemistry Dealkylation delphinine DELPHINIUM DELPHINIUM STAPHISAGRIA Diterpenes - chemistry DITERPENOIDE DITERPENOIDS DITERPENOS ESPECTROMETRIA ESTRUCTURA QUIMICA Exact sciences and technology EXTRACTOS VEGETALES EXTRAIT D'ORIGINE VEGETALE falconerine Indicators and Reagents lappaconitine Magnetic Resonance Spectroscopy METABOLITE METABOLITES METABOLITOS METHYLATION METILACION Organic chemistry PLANT EXTRACTS Preparations and properties SPECTRAL ANALYSIS SPECTROMETRIE SPECTROMETRY STRUCTURE CHIMIQUE talatizamine Terpenoids Trimethylsilyl Compounds
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