Abstract
Two benzophenone glucopyranosides have been isolated from the nut shell part of Mahkota Dewa. The structures were identified as 2,4′,6-trihydroxy-4-methoxy-benzophenone-2-O-β-d-glucoside (Mahkoside A) and 2,4′,6-trihydroxy-4-methoxy-6″-acetyl-benzophenone-2-O-β-d-glucoside (Mahkoside B). Mahkoside B was recognized as a novel compound. Furthermore, a series of benzophenone glucopyranoside derivatives (compounds 3–18) were synthesized and their bioactivities were characterized. Our results demonstrated that compound 18 has significant cytotoxicity against two esophageal cancer cell lines, stomach cancer cell line and prostate cancer cell line, with IC50 less than 10μM, indicating its potential activity against cancer cells.
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