Two new xanthones from Artocarpus obtusus
Hashim, Najihah and Rahmani, Mawardi and Sukari, Mohd A. and Ali, Abdul M. and Mohamed Alitheen, Noorjahan Banu and Go, Rosea and M. Ismail, Hazar B. (2010) Two new xanthones from Artocarpus obtusus. Journal of Asian Natural Products Research, 12 (2). pp. 106-112. ISSN 1028-6020
Two new xanthones, pyranocycloartobiloxanthone A (1) and dihydroartoindonesianin C (2), were isolated from the stem bark of Artocarpus obtusus Jarrett by chromatographic separation. Their structures were determined by using spectroscopic methods and comparison with known related compounds. Pyranocycloartobiloxanthone A (1) showed strong free radical scavenging activity by using DPPH assay as well as cytotoxicity towards K562, HL-60, and MCF7 cell lines.
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