Results 111 to 120 of about 514 (160)

Phragmalin-Type Limonoid Orthoesters from Chukrasia tabularis var. velutina

Chemical and Pharmaceutical Bulletin, 2011
Nine new phragmalin-type limonoid orthoesters, tabulalides F-N (1-9), together with three known compounds, tabulalides C and D, and tabularisin N (10-12), were isolated from the stem bark of Chukrasia tabularis var. velutina. Extensive spectroscopic technologies were applied to elucidate the structures of these new compounds, including the application ...
Jun Luo, Jun-Song Wang, Ling-Yi Kong
exaly   +4 more sources

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Phragmalin Limonoids from Chukrasia tabularis

ChemInform, 2004
Six phragmalin limonoids, named tabulalin and tabulalides A-E, were isolated from the root bark of Chukrasia tabularis (Meliaceae). Their structures were determined by spectroscopic methods, and their antifeedant properties evaluated.
Munehiro, Nakatani, Samir A M, Abdelgaleil, Mona M G, Saad, Ruo C, Huang, Matsumi, Doe, Tetsuo, Iwagawa   +5 more
openaire   +2 more sources

Phragmalin Limonoids from the Stem Barks of Chukrasia tabularis var. velutina

Planta Medica, 2014
Seven new phragmalin limonoids, chukvelutilides I-O (1-7), were isolated from the stem barks of Chukrasia tabularis var. velutina. Their structures were elucidated by extensive spectroscopic analysis. Among them, compound 1 showed moderate lethal activity against brine shrimp larvae, with an LC50 value of 84.1 µM.
Chun-Mao Yuan, Shi-Fei Li, Yu Zhang
exaly   +3 more sources

Phytochemical and antimicrobial study of Chukrasia tabularis leaves

Fitoterapia, 2001
Successive petroleum ether, benzene, chloroform, ethyl acetate and methanol extracts of Chukrasia tabularis leaves were tested for their phytochemical constituents, antibacterial and antifungal activity. The ethyl acetate and methanol extracts were found to be most effective against most of the tested organisms.
M A, Nagalakshmi, D, Thangadurai, D M, Rao, T, Pullaiah   +3 more
openaire   +2 more sources

Limonoids from the Twigs and Leaves of Chukrasia tabularis

Helvetica Chimica Acta, 2008
AbstractSeven new limonoids, tabularisins J–P (1–7, resp.), together with eight known compounds, were isolated from the twigs and leaves of Chukrasia tabularis. Their structures were determined primarily by spectroscopic methods. The potassium channel blocking activities of some of these isolates were evaluated, and a few of them exerted significant ...
Chuan‐Rui Zhang, Sheng‐Ping Yang, Xue‐Qin Chen, Yan Wu, Xue‐Chu Zhen, Jian‐Min Yue   +5 more
openaire   +3 more sources

Kv1.2 potassium channel inhibitors from Chukrasia tabularis

Organic & Biomolecular Chemistry, 2012
Eighteen new limonoids, chubularisins A-R (1-18), along with eleven known analogues, were isolated from the stem bark of Chukrasia tabularis. The structures of 1-18 were elucidated on the basis of spectroscopic data and chemical evidence. Compound 1 represented the first example of 8,9,12-orthoester of phragmalin limonoids.
Hong-Bing, Liu, Hua, Zhang, Ping, Li, Yan, Wu, Zhao-Bing, Gao, Jian-Min, Yue   +5 more
openaire   +2 more sources

Phragmalin Limonoids fromChukrasia tabularisvar.velutina

Planta Medica, 2011
Two new C-15-acyl phragmalin limonoids, velutinalides A and B, featuring a C-16/C-30 δ-lactone ring, and a new structurally related natural product, R310B8, were isolated from the leaves of Chukrasia tabularis var. velutina. Their structures were elucidated on the basis of extensive spectroscopic data analyses and by comparison of their NMR data with ...
Xue-Lian Chen, Hai-Li Liu, Yue-Wei Guo
openaire   +2 more sources

Nortriterpenoids from Chukrasia tabularis var. velutina

Journal of Natural Products, 2007
Five new limonoids, tabularisins E-I ( 1- 5), and a new dinorcycloartane, (24 R)-28,29-dinor-cycloartane-3beta,24,25-triol ( 6), together with three known compounds, were isolated from the twigs and leaves of Chukrasia tabularis var. velutina. Their structures were elucidated primarily on the basis of spectroscopic methods.
Chuan-Rui, Zhang, Sheng-Ping, Yang, Qiao, Zhu, Shang-Gao, Liao, Yan, Wu, Jian-Min, Yue   +5 more
openaire   +2 more sources

Chukrasia tabularis - An oil-yielding tree

Journal of Non-Timber Forest Products, 1997
Seeds of Chukrasia tabularis contain 30% of oil which is quite encouraging. The oil is rich in linoleic and linolenic acids which are nutritionally essential fatty acids. The oil does not contain oxygenated fatty acid glyc­erides and epoxy fatty acid glycerides, hence the oil is likely to be a good edible oil provided it has no toxic properties.
P. Jain, Sushma Mahajan, K. Ayyar
openaire   +1 more source