Beniddir MA, Göransson U, Robertson LP. On the structures of the penduflorines from Tabernaemontana penduliflora.
Fitoterapia 2023;
167:105506. [PMID:
37068714 DOI:
10.1016/j.fitote.2023.105506]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 03/30/2023] [Accepted: 04/03/2023] [Indexed: 04/19/2023]
Abstract
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.
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