Biomimetic approach to Galbulimina type I alkaloidsTchabanenko, K., Chesworth, R., Parker, J. S., Anand, N. K., Russell, A. T., Adlington, R. M. and Baldwin, J. E. (2005) Biomimetic approach to Galbulimina type I alkaloids. Tetrahedron, 61 (49). pp. 11649-11656. ISSN 0040-4020 Full text not archived in this repository. It is advisable to refer to the publisher's version if you intend to cite from this work. See Guidance on citing. To link to this item DOI: 10.1016/j.tet.2005.09.050 Abstract/SummaryOn treatment with trifluoroacetic acid the tetraene precursor 23 underwent Boc deprotection, condensation and an iminium ion accelerated intramolecular Diels-Alder cycloaddition resulting in an iminium species 12, which was further converted into himbacine 1, himbeline 3 and himandravine 4, three out of four Galbulimina type I alkaloids thus providing strong evidence for the proposed biogenesis of this important family of alkaloids.
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