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Khamthong Nanthaphong Cheng Ming-Jen Wu Ming-Der Chen Jih-Jung 《Chemistry of Natural Compounds》2021,57(5):921-923
Chemistry of Natural Compounds - 相似文献
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Ming-Der Wu Ming-Jen Cheng Jih-Jung Chen Nanthaphong Khamthong Wen-Wei Lin Yueh-Hsiung Kuo 《Molecules (Basel, Switzerland)》2022,27(2)
Seven new compounds, including one dimer novel skeleton, chamaecyformosanin A (1); three diterpenes, chamaecyformosanins B–D (2–4); one sesquiterpene, chamaecyformosanin E (5); and two monoterpenes, chamaecyformosanins F and G (6 and 7) were isolated from the methanol extract of the bark of Chamaecyparis obtusa var. formosana. Their structures were established by the mean of spectroscopic analysis and the comparison of NMR data with those of known analogues. Their structures were elucidated on the basis of physicochemical evidence, in-depth NMR spectroscopic analysis, and high-resolution mass spectrometry. Furthermore, the isolated compounds were subjected to an evaluation of their antimicrobial activity. Metabolites 1, 3, and 4 present antibacterial activities. It is worth mentioning that the chemical composition of the bark of C. obtusa var. formosana has never been studied in the past. This is the first time the barks from C. obtusa var. formosana were studied and two new skeleton compounds, 1 and 7, were obtained. 相似文献
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Cheng Ming-Jen Wu Ming-Der Khamthong Nanthaphong Tseng Min 《Chemistry of Natural Compounds》2021,57(6):1134-1136
Chemistry of Natural Compounds - 相似文献
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Nanthaphong Khamthong Vatcharin Rukachaisirikul Souwalak Phongpaichit Sita Preedanon Jariya Sakayaroj 《Tetrahedron》2012,68(39):8245-8250
Five new polyketides including two benzopyranones (1 and 2), one isochroman (3) and two anthraquinone-citrinin derivatives (4 and 5) were isolated from the sea fan-derived fungus Penicillium citrinum PSU-F51 together with thirteen known compounds. The structures were determined by spectroscopic methods. The anthraquinone-citrinin derivatives are rare natural products. Compound 4 displayed moderate antibacterial activity against both Staphylococcus aureus and methicillin-resistant S. aureus with equal MIC values of 16 μg/mL, while the known coniochaetone A displayed moderate antifungal activity against Candida albicans with MIC value of 16 μg/mL. 相似文献
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