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Clerodens E–J, antibacterial caffeic acid derivatives from the aerial part of Clerodendranthus spicatus
- Li, Qing, He, Ying-Na, Shi, Xiao-Wei, Kang, Li-Ying, Niu, Li-Ying, Wang, Xin-Guo, Feng, Wei
- Fitoterapia 2016 v.114 pp. 110-114
- Orthosiphon aristatus, aerial parts, antibacterial properties, bacteria, caffeic acid, drug resistance, medicinal plants, nuclear magnetic resonance spectroscopy
- Six new caffeic acid derivatives, Clerodens E–J (1–6) were isolated from the aerial part of Clerodendranthus spicatus. Their structures were elucidated by extensive spectroscopic analysis, including NMR, MS, and ECD data. Compound 1 showed moderate antibacterial activities against drug-resistant strains of bacteria in vitro.