Results 141 to 150 of about 1,823 (182)

Genetic diversity in two threatened species in Vietnam: Taxus chinensis and Taxus wallichiana

Journal of Forestry Research, 2016
Taxus chinensis and T. wallichiana in have been threatened in their distribution areas in recent decades because of their over-exploitation and reduction and destruction of native habitats. Determining the genetic diversity in populations of the two species will provide guidelines for their protection and preservation.
Minh Tam Nguyen, Dinh Duy Vu, Nguyen Minh Tam   +2 more
exaly   +2 more sources

Taxoids from Taxus chinensis

Journal of Natural Products, 2006
Two new taxoids, 13,15-epoxy-13-epi-taxayunnasin A (1) and taxchinin N (2), were isolated from the leaves and stems of Taxus chinensis. Compound 2 is the first taxoid to be reported with an alpha,beta-unsaturated lactone at C-4, C-5, C-20, and C-2.
Yu, Zhao, Fu-Sheng, Wang, Li-Yan, Peng, Xiao-Li, Li, Gang, Xu, Xiao-Xin, Luo, Yang, Lu, Li, Wu, Qi-Tai, Zheng, Qin-Shi, Zhao   +9 more
openaire   +2 more sources

Novel Diterpenoids from Taxus chinensis

Journal of Natural Products, 1993
Five new diterpenoids, taxchinins A {3}, B{4}, and C{5}, 19-hydroxy-7-epibaccatin III {6}, and 10-deacetyl-10-oxobaccatin V {7}, have been isolated from the needles and stems of Taxus chinensis together with twelve known compounds including taxol {1}. These structures were elucidated and identified by spectroscopic techniques.
Kaoru Fuji, Kiyoshi Tanaka, Bo Li, Tetsuro Shingu, Handong Sun, Tooru Taga   +5 more
openaire   +1 more source

Taxchinin a: a diterpenoid from taxus Chinensis

Tetrahedron Letters, 1992
Abstract A diterpenoid with a novel basic skeleton has been isolated from Taxus chinensis , the structure of which was elucidated by spectral means and unambiguously determined by an X-ray analysis.
Kaoru Fuji, Kiyoshi Tanaka, Bo Li, Tetsuro Shingu, Handong Sun, Tooru Taga   +5 more
openaire   +1 more source

Polyprenols from the needles of Taxus chinensis var. mairei

Fitoterapia, 2012
Polyprenols with various pharmacological activities were first isolated from Taxus chinensis var. mairei, which is native to China, and were identified by a high performance liquid chromatography/mass spectrometry (HPLC/MS), (1)H nuclear magnetic resonance ((1)H NMR), (13)C NMR and infrared (IR) spectroscopy.
Jinhui, Yu, Yanbin, Wang, Hua, Qian, Yunpeng, Zhao, Bentong, Liu, Chengxin, Fu   +5 more
openaire   +2 more sources

Bicyclic Taxoids from Needles ofTaxus chinensis

Planta Medica, 1996
A new bicyclic taxoid, 5-deacetyltaxachitriene B (2) together with a known bicyclic taxoid (1) were isolated from needles of Taxus chinensis. Spectral characteristics for these bicyclic taxoids were discussed.
W S, Fang, Q C, Fang, X T, Liang
openaire   +2 more sources

Molecular, structural, and phylogenetic analyses of Taxus chinensis JAZs

Gene, 2017
Taxus spp. are ancient gymnosperms that produce a unique secondary metabolite, namely, taxol, an anticancer drug. JAZ proteins are key regulators of the JA signaling pathway, which control taxol biosynthesis. However, the JAZ proteins of Taxus spp. are poorly studied.
Meng, Zhang, Ying, Chen, Lin, Nie, Xiaofei, Jin, Chunhua, Fu, Longjiang, Yu   +5 more
openaire   +2 more sources

Taxoids from Cell Cultures of Taxus Chinensis

Phytochemistry, 1998
Abstract A cell culture of Taxus chinensis was found to produce taxoids in 4% yield (dry weight) after stimulation with methyl jasmonate. From the culture medium and cell mass, 16 taxoids were isolated. The structures were determined by two-dimensional gradient-enhanced DQF-COSY, HMQC, HMBC, and NOESY NMR experiments.
Birgitta Menhard, Wolfgang Eisenreich, Peter J. Hylands, Adelbert Bacher, Meinhart H. Zenk   +4 more
openaire   +1 more source

Taxane diterpenoids from the seeds of Chinese yew Taxus chinensis

Phytochemistry, 1999
The taxoid chinentaxunine has been isolated from the seeds of Chinese yew Taxus chinensis, and its structure determined on the basis of spectral and chemical methods. In addition, the known taxol C, paclitaxel, 10-deacetyl taxol A, 10-deacetyl-7-epitaxol, 10-deacetyl-10-oxo-7-epi-taxol, taxinine M, taxchinin A, 10-deacetyl taxinine B and taxuspine X ...
Y C, Shen, Y J, Chen, C Y, Chen
openaire   +2 more sources

A New 1,2-Deoxytaxane Diterpenoid fromTaxus chinensis

Planta Medica, 1998
The bark of Taxus chinensis yielded a new taxane diterpenoid, 2-deacetoxy-7,9-dideacetyltaxinine J ( 1) together with several known taxoids. (1)H- and (13)C-NMR data of 1 are reported.
J Y, Liang, K S, Huang, A A, Gunatilaka
openaire   +2 more sources