19β,28-Epoxy-18α-olean-3β-ol-2-furoate from Allobetulin (19β,28-Epoxy-18α-olean-3β-ol)
The E ring of betulin rearranges and forms a cyclic ether when treated with an acid. Treatment of betulin with iodine generated hydrogen iodide in situ, which went on to promote the rearrangement at C-19 and C-20, followed by cyclization to form allobetulin. A reaction of allobetulin with 2-furoyl c...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-11-01
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| Series: | Molbank |
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| Online Access: | https://www.mdpi.com/1422-8599/2022/4/M1499 |