Cyclopropane- and spirolimonoids and related compounds from Hortia oreadica.

Autor: Severino VG; Departamento de Química, Universidade Federal de São Carlos, São Carlos, SP, Brazil., Braga PA, da Silva MF, Fernandes JB, Vieira PC, Theodoro JE, Ellena JA
Jazyk: angličtina
Zdroj: Phytochemistry [Phytochemistry] 2012 Apr; Vol. 76, pp. 52-9. Date of Electronic Publication: 2012 Jan 28.
DOI: 10.1016/j.phytochem.2011.12.016
Abstrakt: The dichloromethane extract from taproots of Hortia oreadica afforded six limonoids, these are 9,11-dehydro-12α-acetoxyhortiolide A, hortiolide C, 11α-acetoxy-15-deoxy-6-hydroxyhortiolide C, hortiolide D, hortiolide E, 12β-hydroxyhortiolide E, in addition to the known limonoid, guyanin. The dichloromethane extract from stems of H. oreadica also afforded two limonoids 9,11-dehydro-12α-hydroxyhortiolide A and 6-hydroxyhortiolide C. As a result of this study and literature data, Hortia has been shown to produce highly specialized limonoids that are similar to those from the Flindersia (Flindersioideae). The taxonomy of Hortia has been debatable, with most authors placing it in the Toddalioideae. Considering the complexity of the isolated limonoids, Hortia does not show any close affinity to the genera of Toddalioideae. That is, the limonoids appear to be of little value in resolving the taxonomic situation of Hortia.
(Copyright © 2012 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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