Voatinggine and tabertinggine, pentacyclic indole alkaloids derived from an iboga precursor via a common cleavamine-type intermediate

Kam, T.S. and Nge, C.E. and Gan, C.Y. and Low, Y.Y. and Thomas, N.F. (2013) Voatinggine and tabertinggine, pentacyclic indole alkaloids derived from an iboga precursor via a common cleavamine-type intermediate. Organic Letters, 15 (18). pp. 4774-4777. ISSN 1523-7060, DOI https://doi.org/10.1021/ol4021404.

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Abstract

Two new indole alkaloids, voatinggine (1) and tabertinggine (2), which are characterized by previously unencountered natural product skeletons,were isolated from a Malayan Tabernaemontana species. The structures and absolute configuration of these alkaloids were determined using NMR and MS analysis, and X-ray diffraction analysis. A possible biogenetic pathway to these novel alkaloids from an iboga precursor, and via a common cleavamine-type intermediate, is presented.

Item Type: Article
Funders: UNSPECIFIED
Additional Information: Department of Chemistry, Faculty of Science, University of Malaya
Uncontrolled Keywords: Tabernaemontana; Alkaloids; Hexacyclic indole conolutinine; Aspidosperma.
Subjects: Q Science > QD Chemistry
Divisions: Faculty of Science > Department of Chemistry
Depositing User: Ms. Suhaila Syakila Alby
Date Deposited: 31 Oct 2014 03:00
Last Modified: 31 Oct 2014 03:00
URI: http://eprints.um.edu.my/id/eprint/10384

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