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001-es BibID:BIBFORM068518
Első szerző:Yu, Xiao-Qing
Cím:Compositacins A-K : Bioactive chamigrane-type halosesquiterpenoids from the red alga Laurencia composita Yamada / Xiao-Qing Yu, Chang-Sheng Jiang, Yi Zhang, Pan Sun, Tibor Kurtan, Attila Mandi, Xiao-Lu Li, Li-Gong Yao, Ai-Hong Liu, Bin Wang, Yue-Wei Guo, Shui-Chun Mao
Dátum:2017
ISSN:0031-9422
Megjegyzések:Eleven highly halogenated chamigrane sesquiterpenoids, compositacins A-K, including one unusual rearranged chamigrane sesquiterpenoid, compositacin A, were isolated from the red alga Laurencia composita Yamada, along with seven known structural analogues. Compositacins B and D are the first examples of chamigranes bearing an ether bridge involving C-5/C-9 and C-3/C-5, respectively, while compositacins B and C represent the first chamigranes with a C-10 carbonyl group. Their structures were elucidated on the basis of extensive spectroscopic analysis. The absolute configuration of compositacin B was determined by ECD calculation, whereas the absolute configurations of compositacins A and C-L were proposed on biosynthetic grounds by comparison to compositacin B and the related known sesquiterpenoids johnstonol and yicterpene A. We also suggest that the structure of the previously reported sesquiterpenoid laurokamin A should be revised. Cytotoxicity and antifungal activity of these isolates were also investigated. The results showed that compositacin G exhibited good antifungal activity against Microsporum gypseum (Cmccfmza) with a MIC80 value of 4 ?g/mL relative to positive controls. Four of the chamigrane halosesquiterpenoids showed marginal cytotoxicity against the A-549 human lung adenocarcinoma cell line with IC50 values ranging from 48.6 to 85.2 ?M.
Tárgyszavak:Természettudományok Kémiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban
Laurencia composita
Rhodomelaceae
Rearranged chamigrane sesquiterpenoid
Chamigrane sesquiterpenoid
Compositacins A-K
ECD calculation
X-ray diffraction
Antifungal activity
Cytotoxicity
Megjelenés:Phytochemistry. - 136 (2017), p. 81-93. -
További szerzők:Jiang, Chang-Sheng Zhang, Yi Sun, Pan Kurtán Tibor (1973-) (vegyész, angol szakfordító) Mándi Attila (1981-) (vegyész, német szakfordító) Li, Xiao-Lu Yao, Li-Gong Liu, Ai-Hong Wang, Bin Guo, Yue-Wei Mao, Shui-Chun
Pályázati támogatás:GINOP-2.3.2-15-2016-00008
GINOP
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