New 14-Membered Cyclopeptide Alkaloids from Zizyphus oxyphylla Edgew
AbstractTwo new 14-membered cyclopeptide alkaloids, Oxyphylline B (4) and Oxyphylline C (5), along with three known 13-membered cyclopeptide alkaloids, were isolated from stem and roots of Zizyphus oxyphylla Edgew. The compounds were tested for antibacterial activity. Oxyphylline B (4) showed comparatively better antibacterial activities against Escherichia coli (MIC, 5 µg/mL) than other compounds. This compound also exhibited weak antimicrobial activities against Staphylococcus aureus (MIC, 25 µg/mL), Pseudomonas aeruginosa (MIC, 50 µg/mL) and Salmonella typhi (MIC, 50 µg/mL).
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Kaleem, W.A.; Nisar, M.; Qayum, M.; Zia-Ul-Haq, M.; Adhikari, A.; De Feo, V. New 14-Membered Cyclopeptide Alkaloids from Zizyphus oxyphylla Edgew. Int. J. Mol. Sci. 2012, 13, 11520-11529.
Kaleem WA, Nisar M, Qayum M, Zia-Ul-Haq M, Adhikari A, De Feo V. New 14-Membered Cyclopeptide Alkaloids from Zizyphus oxyphylla Edgew. International Journal of Molecular Sciences. 2012; 13(9):11520-11529.Chicago/Turabian Style
Kaleem, Waqar Ahmad; Nisar, Muhammad; Qayum, Mughal; Zia-Ul-Haq, Muhammad; Adhikari, Achyut; De Feo, Vincenzo. 2012. "New 14-Membered Cyclopeptide Alkaloids from Zizyphus oxyphylla Edgew." Int. J. Mol. Sci. 13, no. 9: 11520-11529.