Withanolides with phytotoxic activity from Jaborosa caulescent var. caulescens and J. caulescens var. bipinnatifida

Seven new withanolides (1-7) were isolated from the aerial parts of Jaborosa caulescens var. caulescens and Jaborosa caulescens var. bipinnatifida. Three of the new compounds are related to jaborosalactones R, S, and T with a δ5-lactone side chain and a hemiketal (or ketal) ring formed between a 21-...

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Autor principal:	Burton, Gerardo
Publicado:	2007
Materias:	12 o ethyljaborosalactone 42 12 o methyljaborosalactone 38 acetal hydroxyl group Jaborosa caulescens extract jaborosalactone 38 jaborosalactone 39 jaborosalactone 40 jaborosalactone 41 jaborosalactone 42 ketone plant extract unclassified drug withanolide article chromatography drug structure Jaborosa caulescens medicinal plant nonhuman nuclear magnetic resonance phytotoxicity Argentina Avena sativa Ergosterol Germination Herbicides Lettuce Molecular Structure Plants, Medicinal Seedling Solanaceae Jaborosa
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01633864_v70_n5_p808_Nicotra http://hdl.handle.net/20.500.12110/paper_01633864_v70_n5_p808_Nicotra
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_01633864_v70_n5_p808_Nicotra
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spelling	paper:paper_01633864_v70_n5_p808_Nicotra2023-06-08T15:14:17Z Withanolides with phytotoxic activity from Jaborosa caulescent var. caulescens and J. caulescens var. bipinnatifida Burton, Gerardo 12 o ethyljaborosalactone 42 12 o methyljaborosalactone 38 acetal hydroxyl group Jaborosa caulescens extract jaborosalactone 38 jaborosalactone 39 jaborosalactone 40 jaborosalactone 41 jaborosalactone 42 ketone plant extract unclassified drug withanolide article chromatography drug structure Jaborosa caulescens medicinal plant nonhuman nuclear magnetic resonance phytotoxicity Argentina Avena sativa Ergosterol Germination Herbicides Lettuce Molecular Structure Plants, Medicinal Seedling Solanaceae Jaborosa Seven new withanolides (1-7) were isolated from the aerial parts of Jaborosa caulescens var. caulescens and Jaborosa caulescens var. bipinnatifida. Three of the new compounds are related to jaborosalactones R, S, and T with a δ5-lactone side chain and a hemiketal (or ketal) ring formed between a 21-hydroxyl and a 12-ketone (1-3). Compounds 4-7 are trechonolide-type withanolides with a γ-lactone side chain and a hemiketal (or ketal) ring formed between a 22-hydroxyl and a 12-ketone. Compounds 4 and 5 also contain a hydroxyl group at C-21. Compounds 1, 2, and 7 showed selective phytotoxicity toward monocotyledonous and dicotyledonous species. © 2007 American Chemical Society and American Society of Pharmacognosy. Fil:Burton, G. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2007 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01633864_v70_n5_p808_Nicotra http://hdl.handle.net/20.500.12110/paper_01633864_v70_n5_p808_Nicotra
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	12 o ethyljaborosalactone 42 12 o methyljaborosalactone 38 acetal hydroxyl group Jaborosa caulescens extract jaborosalactone 38 jaborosalactone 39 jaborosalactone 40 jaborosalactone 41 jaborosalactone 42 ketone plant extract unclassified drug withanolide article chromatography drug structure Jaborosa caulescens medicinal plant nonhuman nuclear magnetic resonance phytotoxicity Argentina Avena sativa Ergosterol Germination Herbicides Lettuce Molecular Structure Plants, Medicinal Seedling Solanaceae Jaborosa
spellingShingle	12 o ethyljaborosalactone 42 12 o methyljaborosalactone 38 acetal hydroxyl group Jaborosa caulescens extract jaborosalactone 38 jaborosalactone 39 jaborosalactone 40 jaborosalactone 41 jaborosalactone 42 ketone plant extract unclassified drug withanolide article chromatography drug structure Jaborosa caulescens medicinal plant nonhuman nuclear magnetic resonance phytotoxicity Argentina Avena sativa Ergosterol Germination Herbicides Lettuce Molecular Structure Plants, Medicinal Seedling Solanaceae Jaborosa Burton, Gerardo Withanolides with phytotoxic activity from Jaborosa caulescent var. caulescens and J. caulescens var. bipinnatifida
topic_facet	12 o ethyljaborosalactone 42 12 o methyljaborosalactone 38 acetal hydroxyl group Jaborosa caulescens extract jaborosalactone 38 jaborosalactone 39 jaborosalactone 40 jaborosalactone 41 jaborosalactone 42 ketone plant extract unclassified drug withanolide article chromatography drug structure Jaborosa caulescens medicinal plant nonhuman nuclear magnetic resonance phytotoxicity Argentina Avena sativa Ergosterol Germination Herbicides Lettuce Molecular Structure Plants, Medicinal Seedling Solanaceae Jaborosa
description	Seven new withanolides (1-7) were isolated from the aerial parts of Jaborosa caulescens var. caulescens and Jaborosa caulescens var. bipinnatifida. Three of the new compounds are related to jaborosalactones R, S, and T with a δ5-lactone side chain and a hemiketal (or ketal) ring formed between a 21-hydroxyl and a 12-ketone (1-3). Compounds 4-7 are trechonolide-type withanolides with a γ-lactone side chain and a hemiketal (or ketal) ring formed between a 22-hydroxyl and a 12-ketone. Compounds 4 and 5 also contain a hydroxyl group at C-21. Compounds 1, 2, and 7 showed selective phytotoxicity toward monocotyledonous and dicotyledonous species. © 2007 American Chemical Society and American Society of Pharmacognosy.
author	Burton, Gerardo
author_facet	Burton, Gerardo
author_sort	Burton, Gerardo
title	Withanolides with phytotoxic activity from Jaborosa caulescent var. caulescens and J. caulescens var. bipinnatifida
title_short	Withanolides with phytotoxic activity from Jaborosa caulescent var. caulescens and J. caulescens var. bipinnatifida
title_full	Withanolides with phytotoxic activity from Jaborosa caulescent var. caulescens and J. caulescens var. bipinnatifida
title_fullStr	Withanolides with phytotoxic activity from Jaborosa caulescent var. caulescens and J. caulescens var. bipinnatifida
title_full_unstemmed	Withanolides with phytotoxic activity from Jaborosa caulescent var. caulescens and J. caulescens var. bipinnatifida
title_sort	withanolides with phytotoxic activity from jaborosa caulescent var. caulescens and j. caulescens var. bipinnatifida
publishDate	2007
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01633864_v70_n5_p808_Nicotra http://hdl.handle.net/20.500.12110/paper_01633864_v70_n5_p808_Nicotra
work_keys_str_mv	AT burtongerardo withanolideswithphytotoxicactivityfromjaborosacaulescentvarcaulescensandjcaulescensvarbipinnatifida
_version_	1768546204378988544

Withanolides with phytotoxic activity from Jaborosa caulescent var. caulescens and J. caulescens var. bipinnatifida

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