The Structure Elucidation and Antimicrobial Activities of Nonsterol Triterpenoids from Ixeris chinensis

Autor:	Jiesi Wu, Rongjun Wu, Xiao-Lan Wu, Wenquan Tai, Na-Yin-Tai Dai, Narenchaoketu Han, Qinghu Wang
Rok vydání:	2014
Předmět:	Triterpenoid Traditional medicine Ixeris chinensis Chemistry General Chemistry Antimicrobial
Zdroj:	Zeitschrift für Naturforschung B. 69:1021-1025
ISSN:	1865-7117 0932-0776
DOI:	10.5560/znb.2014-4114
Popis:	An investigation of the petroleum ether extract from Ixeris chinensis Nakai has led to the isolation of a new compound, 3-O-acetyl-22,28-cyclobauer-7-en-3β-ol (1), together with four known compounds which have been isolated from this plant for the first time, namely taraxast-20-en-3β-ol (2), 3-O-acetyl-taraxast-20-en-3β-ol (3), taraxast-20(30)-en-3β-ol (4), and 3-O-acetyl-taraxast-20(30)- en-3β-ol (5). The structures of the isolated compounds have been elucidated on the basis of spectroscopic methods including UV, IR, ESI-MS, 1D NMR, 2D NMR techniques, and by comparison with data reported in the literature. All compounds have been evaluated for their activity against various bacteria and shown to give good results
Databáze:	OpenAIRE
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