نتایج جستجو برای: amaryllidaceae alkaloids

تعداد نتایج: 15071  

Amaryllidaceae is a well-known family for its high alkaloidal content. These alkaloids comprise a unique group of bases that have been found to occur in this family. The Amaryllidaceae alkaloids represent a large and still expanding group of isoquinoline alkaloids, the majority of which are not known to occur in any other family of plants This article reports on the phytochemical investigation ...

2016
Eman Shawky

Amaryllidaceae is a well-known family for its high alkaloidal content. These alkaloids comprise a unique group of bases that have been found to occur in this family. The Amaryllidaceae alkaloids represent a large and still expanding group of isoquinoline alkaloids, the majority of which are not known to occur in any other family of plants. This article reports on the phytochemical investigation...

Journal: :Chemical & pharmaceutical bulletin 2009
Lei Wang Xiao-Qi Zhang Zhi-Qi Yin Ying Wang Wen-Cai Ye

Two new Amaryllidaceae alkaloids, named lycoranines A (1) and B (2), were isolated from the bulbs of Lycoris radiata. Their structures were elucidated on the basis of extensive spectroscopic analysis. Compound 2 was a new-type alkaloid, which provided a new insight into the biosynthesis of alkaloids in Amaryllidaceae plants.

Journal: :iranian journal of pharmaceutical research 0
eman shawky alexandria university, faculty of pharmacy

amaryllidaceae is a well-known family for its high alkaloidal content. these alkaloids comprise a unique group of bases that have been found to occur in this family. the amaryllidaceae alkaloids represent a large and still expanding group of isoquinoline alkaloids, the majority of which are not known to occur in any other family of plants this article reports on the phytochemical investigation ...

Amaryllidaceae is a well-known family for its high alkaloidal content. These alkaloids comprise a unique group of bases that have been found to occur in this family. The Amaryllidaceae alkaloids represent a large and still expanding group of isoquinoline alkaloids, the majority of which are not known to occur in any other family of plants This article reports on the phytochemical investigation ...

2013
Adam M. Takos Fred Rook

The alkaloids characteristically produced by the subfamily Amaryllidoideae of the Amaryllidaceae, bulbous plant species that include well know genera such as Narcissus (daffodils) and Galanthus (snowdrops), are a source of new pharmaceutical compounds. Presently, only the Amaryllidaceae alkaloid galanthamine, an acetylcholinesterase inhibitor used to treat symptoms of Alzheimer's disease, is pr...

Journal: :Structure 2018
Simone Pellegrino Mélanie Meyer Christiane Zorbas Soumaya A Bouchta Kritika Saraf Stephen C Pelly Gulnara Yusupova Antonio Evidente Véronique Mathieu Alexander Kornienko Denis L J Lafontaine Marat Yusupov

Alkaloids isolated from the Amaryllidaceae plants have potential as therapeutics for treating human diseases. Haemanthamine has been studied as a novel anticancer agent due to its ability to overcome cancer cell resistance to apoptosis. Biochemical experiments have suggested that hemanthamine targets the ribosome. However, a structural characterization of its mechanism has been missing. Here we...

2011
Lucie Cahlíková Irena Valterová Kateřina Macáková Lubomír Opletal

Amaryllidaceae are known as ornamental plants, furthermore some species of this family contain galanthamine, an acetylcholinesterase inhibitor approved for the treatment of Alzheimer ́s disease, and other alkaloids with interesting pharmacological activity. The chemical composition of alkaloids from Zephyranthes grandiflora Lindl. was analyzed by GC/MS. Seven known compounds, belonging to five s...

2011
Lucie Cahlíková Irena Valterová Kateřina Macáková Lubomír Opletal

Amaryllidaceae are known as ornamental plants, furthermore some species of this family contain galanthamine, an acetylcholinesterase inhibitor approved for the treatment of Alzheimer ́s disease, and other alkaloids with interesting pharmacological activity. The chemical composition of alkaloids from Zephyranthes grandifl ora Lindl. was analyzed by GC/MS. Seven known compounds, belonging to fi ve...

Journal: :Chemical & pharmaceutical bulletin 2003
Fabio Cabezas Arnoldo Ramírez Francesc Viladomat Carles Codina Jaume Bastida

Thirteen alkaloids have been isolated from dried bulbs and leaves of flowering Eucharis amazonica (Amaryllidaceae). The alkaloids, 7-methoxyoxoassoanine, 6-O-methylpretazettine and apohaemanthamine, are reported for the first time from a natural source.

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