On the structures of the penduflorines from Tabernaemontana penduliflora.

The structures of the recently published monoterpene indole alkaloids penduflorines A and B (1a and 1b), isolated from Tabernaemontana penduliflora (Apocynaceae), have been revised. Rather than an inseparable mixture of two compounds, they appear to be the known alkaloid vobasine (2). Although we could not comprehensively revise the structures of penduflorines C-E due to lacking spectral data, since their structural elucidations were based on that of 1a and 1b, their structures should also be treated with caution. Copyright © 2023 The Authors. Published by Elsevier B.V. All rights reserved.

Citation

Mehdi A Beniddir, Ulf Göransson, Luke P Robertson. On the structures of the penduflorines from Tabernaemontana penduliflora. Fitoterapia. 2023 Jun;167:105506

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PMID: 37068714

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