中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | 1,5-Dihydroxy-3-(methoxymethoxy)-6-(2-methylbut-3-en-2-yloxy)xanthen-9-one | 951243-18-8 | C20H20O7 | 372.375 |
—— | 1,5,6-trihydroxy-3-(methoxymethoxy)-9H-xanthen-9-one | 951243-16-6 | C15H12O7 | 304.256 |
1,3,5,6-四羟基呫吨酮 | 1,3,5,6-tetrahydroxy-xanthen-9-one | 5084-31-1 | C13H8O6 | 260.203 |
—— | 7-hydroxy-9-(methoxymethoxy)-2,2-diphenyl-6H-[1,3]dioxolo[4,5-c]xanthen-6-one | 951243-15-5 | C28H20O7 | 468.463 |
—— | 7,9-dihydroxy-2,2-diphenyl-6H-[1,3]dioxolo[4,5-c]xanthen-6-one | 951243-14-4 | C26H16O6 | 424.409 |
Gambogic acid (GA), a special category of Garcinia xanthones, has attracted great attention owing to its striking bioactivities and unique structure. To further explore its structure–activity relationship, we prepared seven novel oxa-caged Garcinia xanthones that were for the first time varied at the C-2 position of B ring and at the C-21/22 or C-23 position of the prenyl group in the caged scaffold. Some compounds exhibited strong anti-proliferation activities in different cancer cell lines. Particularly, compound 8 showed more potent cytotoxic activity and better selectivity towards the A549 cell line than GA. Oxa-caged xanthones 8 was identified as an A549 cell apoptosis inducer through observations of morphological changes and Annexin-V/PI double-staining assay. Additionally, the structure–activity relationships of these new analogues were discussed.