Two New Phragmalin-Type Limonoids from Chukrasia tabularis var. velutina

Two new phragmalin-type limonoids with different structural skeletons, chuktabrin K (1) and tabulalin J (2), were isolated from the stem barks of Chukrasia tabularis var. velutina in the course of our ongoing research work in this area. Compound 1 was a 16-norphragmalin with an enolic alkyl appendag...

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Autores principales: Li, Yi, Luo, Jun, Li, Hui, Kong, Ling-Yi
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2012
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6270024/
https://www.ncbi.nlm.nih.gov/pubmed/23271471
http://dx.doi.org/10.3390/molecules18010373
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author Li, Yi
Luo, Jun
Li, Hui
Kong, Ling-Yi
author_facet Li, Yi
Luo, Jun
Li, Hui
Kong, Ling-Yi
author_sort Li, Yi
collection PubMed
description Two new phragmalin-type limonoids with different structural skeletons, chuktabrin K (1) and tabulalin J (2), were isolated from the stem barks of Chukrasia tabularis var. velutina in the course of our ongoing research work in this area. Compound 1 was a 16-norphragmalin with an enolic alkyl appendage at C-15, and the carbonate moiety in 1 was also rare in natural organic molecules. The basic skeleton of compound 2 was a D-ring-opened phragmalin. Their structures were elucidated on HR-ESI-MS, (1)H and (13)C-NMR, HSQC, HMBC, and ROESY experiments.
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spelling pubmed-62700242018-12-14 Two New Phragmalin-Type Limonoids from Chukrasia tabularis var. velutina Li, Yi Luo, Jun Li, Hui Kong, Ling-Yi Molecules Article Two new phragmalin-type limonoids with different structural skeletons, chuktabrin K (1) and tabulalin J (2), were isolated from the stem barks of Chukrasia tabularis var. velutina in the course of our ongoing research work in this area. Compound 1 was a 16-norphragmalin with an enolic alkyl appendage at C-15, and the carbonate moiety in 1 was also rare in natural organic molecules. The basic skeleton of compound 2 was a D-ring-opened phragmalin. Their structures were elucidated on HR-ESI-MS, (1)H and (13)C-NMR, HSQC, HMBC, and ROESY experiments. MDPI 2012-12-27 /pmc/articles/PMC6270024/ /pubmed/23271471 http://dx.doi.org/10.3390/molecules18010373 Text en © 2013 by the authors; licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/).
spellingShingle Article
Li, Yi
Luo, Jun
Li, Hui
Kong, Ling-Yi
Two New Phragmalin-Type Limonoids from Chukrasia tabularis var. velutina
title Two New Phragmalin-Type Limonoids from Chukrasia tabularis var. velutina
title_full Two New Phragmalin-Type Limonoids from Chukrasia tabularis var. velutina
title_fullStr Two New Phragmalin-Type Limonoids from Chukrasia tabularis var. velutina
title_full_unstemmed Two New Phragmalin-Type Limonoids from Chukrasia tabularis var. velutina
title_short Two New Phragmalin-Type Limonoids from Chukrasia tabularis var. velutina
title_sort two new phragmalin-type limonoids from chukrasia tabularis var. velutina
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6270024/
https://www.ncbi.nlm.nih.gov/pubmed/23271471
http://dx.doi.org/10.3390/molecules18010373
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AT konglingyi twonewphragmalintypelimonoidsfromchukrasiatabularisvarvelutina

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