Identification of histrionicotoxins by GC-MS and GC-FTIR: Photo- and chemical-artefacts and revised 13C NMR assignments

Identification of histrionicotoxins by GC-MS and GC-FTIR: Photo- and chemical-artefacts and revised 13C NMR assignments ¹³C Nuclear magnetic resonance spectroscopy in the elucidation of structures of diterpenoid alkaloids Allenic and Acetylenic Spiropiperidine Alkaloids from the Neotropical Forg, <i>Dendrobates histrionicus</i> Two known bis-indole alkaloids isolated fromTabernaemontana laeta: complete1H and13C chemical shift assignments Gephyrotoxins, Histrionicotoxins and Pumiliotoxins from the Neotropical Frog Dendrobates histrionicus Nuclear Magnetic Resonance Spectroscopy and Mass Spectrometry of Solanidine, Leptinidine, and Acetylleptinidine. Steroidal Alkaloids from <i>Solanum chacoense</i> Bitter One‐Step Synthesis of the 1‐Azaspiro[5.5]undecane Skeleton Characteristic of Histrionicotoxin Alkaloids from Linear Substrates via Hg(OTf)₂‐Catalyzed Cycloisomerization ¹³C-nmr Assignments and Cytotoxicity Assessment of Zoanthoxanthin Alkaloids from Zoanthid Corals Syntheses of the Proposed Structures of Poison-Frog Alkaloids 179 and 207E and Their Inhibitory Effects on Neuronal Nicotinic Acetylcholine Receptors NMR spectral assignments of a new chlorotryptamine alkaloid and its analogues from Acacia confusa