Uvarmicranones A and B, two new benzoquinones and cytotoxic constituents from the stems of Uvaria micrantha (A. DC.) Hook. f. & Thomson
| Autor: | Chulabhorn Mahidol, Sanit Thongnest, Hunsa Prawat, Jutatip Boonsombat, Somsak Ruchirawat, Surasak Kheawchaum |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
biology
010405 organic chemistry Stereochemistry Chemistry Organic Chemistry Uvaria Plant Science biology.organism_classification 01 natural sciences Biochemistry Benzoquinone Cycloaddition 0104 chemical sciences Analytical Chemistry HeLa 010404 medicinal & biomolecular chemistry Annonaceae Cytotoxic T cell Cytotoxicity IC50 |
| Zdroj: | Natural Product Research. 35:5643-5652 |
| ISSN: | 1478-6427 1478-6419 |
| Popis: | Two novel benzoquinones, uvarmicranones A (1) and B (2), along with 15 known compounds (3 - 17) were isolated from the stems of Uvaria micrantha (Annonaceae). Their structures were elucidated by analyses of NMR and high-resolution mass data. A plausible biosynthetic pathway of uvarmicranone A (1) via Diels-Alder cycloaddition reaction was also proposed. Some isolated compounds were evaluated for their cytotoxic activities. Compounds 1, 14, and 15 showed moderate cytotoxic effects against T-cell acute lymphoblastic cells (MOLT-3), with IC50 values of 7.83 ± 0.83, 6.53 ± 1.01, and 4.20 ± 0.29 μM, respectively. Additionally, compound 15 exhibited moderate cytotoxicity against cervical carcinoma cells (HeLa) with an IC50 value of 7.00 ± 3.15 μM. |
| Databáze: | OpenAIRE |
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