Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Joseph Sakah Kaunda"'
Autor:
Joseph Sakah Kaunda, Ying-Jun Zhang
Publikováno v:
Natural Products and Bioprospecting, Vol 9, Iss 6, Pp 405-410 (2019)
Abstract Phytochemical studies on MeOH extract of stems of Euphorbia griffithii led to the isolation of one new hydrolyzable tannin dimer, corilagiffithiin (1) and one new galloyl-glucoside (2), alongside six known ones (3–8). Their structures and
Externí odkaz:
https://doaj.org/article/43138bde01a140e18bc6e5579dea0e88
Publikováno v:
Natural Products and Bioprospecting, Vol 9, Iss 6, Pp 357-392 (2019)
Abstract Terminalia Linn, a genus of mostly medium or large trees in the family Combretaceae with about 250 species in the world, is distributed mainly in southern Asia, Himalayas, Madagascar, Australia, and the tropical and subtropical regions of Af
Externí odkaz:
https://doaj.org/article/7ebf601f9f314f01b9231bf870f41951
Autor:
Joseph Sakah Kaunda, Ying-Jun Zhang
Publikováno v:
Natural Products and Bioprospecting, Vol 9, Iss 2, Pp 77-137 (2019)
Abstract Over the past 30 years, the genus Solanum has received considerable attention in chemical and biological studies. Solanum is the largest genus in the family Solanaceae, comprising of about 2000 species distributed in the subtropical and trop
Externí odkaz:
https://doaj.org/article/dc6c7764de644c55969bf79f696c3f60
Autor:
Joseph Sakah Kaunda, Yuan-Si Chen, Yao-Jun Xu, Chen-Fang Yue, Xing-Jie Zhang, Bin Cheng, Muhammad Amin, Hong-Liang Li, Xiao-Li Li, Wei-Lie Xiao
Publikováno v:
Chemistry of Natural Compounds. 59:46-51
Publikováno v:
Chemistrybiodiversity. 19(12)
Our study on the roots and leaves of the never-hitherto-chemically studied S. glandulosa led to the isolation of five new diterpenes, referred to as stroglandulons A-E (1-5), alongside 18 known constituents (6-23). The structures of the new compounds
Autor:
Jia-Bi Huang, Yuan-Si Chen, Meng-Ru Wang, Rong-Shuai Li, Xue-Rong Zhao, Joseph Sakah Kaunda, Rui-Han Zhang, Xing-Jie Zhang, Wei-Lie Xiao, Hong-Liang Li, Xiao-Li Li
Publikováno v:
Fitoterapia. 162
Ten new prenylated flavonoids, named denticulains A-J (1-10), together with seven known prenylated flavonoids (11-17) were isolated from Macaranga denticulata. Their structures were elucidated on the basis of detailed spectroscopic analysis and by co
Autor:
Joseph Sakah Kaunda, Jia Liu, Yuan-Si Chen, Yao-Jun Xu, Chen-Fang Yue, Xing-Jie Zhang, Rui-Han Zhang, Muhammad Amin, Weilie Xiao, Hong-Liang Li, Xiao-Li Li
Publikováno v:
SSRN Electronic Journal.
Publikováno v:
Natural Products and Bioprospecting, Vol 9, Iss 6, Pp 357-392 (2019)
Natural Products and Bioprospecting
Natural Products and Bioprospecting
Terminalia Linn, a genus of mostly medium or large trees in the family Combretaceae with about 250 species in the world, is distributed mainly in southern Asia, Himalayas, Madagascar, Australia, and the tropical and subtropical regions of Africa. Man
Publikováno v:
Phytochemistry. 184
Three previously undescribed pyridyl-steroidal glycoalkaloids, solanindiosides A‒C, one rare 23S,26R-hydroxylated spirostanoid saponin, and two steroidal alkaloid aglycones, solanindins A and B, derived from the acid hydrolysis of solanindiosides A
Autor:
Joseph Sakah Kaunda, Ying-Jun Zhang
Publikováno v:
Steroids. 153
Solanum indicum var. recurvatum, distributed mainly in Hekou, Simao and Menghai areas of Yunnan province, China, is characterized by stellate pubescent leaves with irregular lengths and oblong, short, and downwardly curved anthers. The original speci