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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Autores principales:	Nicotra, V.E., Gil, R.R., Oberti, J.C., Burton, G.
Formato:	JOUR
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:	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	todo:paper_01633864_v70_n5_p808_Nicotra
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spelling	todo:paper_01633864_v70_n5_p808_Nicotra2023-10-03T15:02:16Z Withanolides with phytotoxic activity from Jaborosa caulescent var. caulescens and J. caulescens var. bipinnatifida Nicotra, V.E. Gil, R.R. Oberti, J.C. Burton, G. 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. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar 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 Nicotra, V.E. Gil, R.R. Oberti, J.C. Burton, G. 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.
format	JOUR
author	Nicotra, V.E. Gil, R.R. Oberti, J.C. Burton, G.
author_facet	Nicotra, V.E. Gil, R.R. Oberti, J.C. Burton, G.
author_sort	Nicotra, V.E.
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
url	http://hdl.handle.net/20.500.12110/paper_01633864_v70_n5_p808_Nicotra
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Withanolides with phytotoxic activity from Jaborosa caulescent var. caulescens and J. caulescens var. bipinnatifida

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