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Lasianosides F–I: A New Iridoid and Three New Bis-Iridoid Glycosides from the Leaves of Lasianthus verticillatus (Lour.) Merr.

A series of iridoid glycosides were isolated from the leaves of Lasianthus verticillatus (Lour.) Merr., belonging to family Rubiaceae. A new iridoid glycoside, lasianoside F (1), and three new bis-iridoid glycosides, lasianosides G–I (2–4), together with four known compounds (5–8) were isolated. The...

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Detalles Bibliográficos
Autores principales: Al-Hamoud, Gadah Abdulaziz, Orfali, Raha Saud, Takeda, Yoshio, Sugimoto, Sachiko, Yamano, Yoshi, Al Musayeib, Nawal M., Fantoukh, Omer Ibrahim, Amina, Musarat, Otsuka, Hideaki, Matsunami, Katsuyoshi
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7356845/
https://www.ncbi.nlm.nih.gov/pubmed/32560479
http://dx.doi.org/10.3390/molecules25122798
Descripción
Sumario:A series of iridoid glycosides were isolated from the leaves of Lasianthus verticillatus (Lour.) Merr., belonging to family Rubiaceae. A new iridoid glycoside, lasianoside F (1), and three new bis-iridoid glycosides, lasianosides G–I (2–4), together with four known compounds (5–8) were isolated. The structures were established by spectroscopic methods, including 1D and 2D NMR experiments ((1)H, (13)C, DEPT, COSY, HSQC, HMBC, and NOESY) in combination with HR-ESI-MS and CD spectra.