Synthesis of ginsenoside Rh2 and chikusetsusaponin-LT8 via gold(I)-catalyzed glycosylation with a glycosyl ortho-alkynylbenzoate as donor
β Scribed by Jinxi Liao; Jiansong Sun; Yiming Niu; Biao Yu
- Book ID
- 104099149
- Publisher
- Elsevier Science
- Year
- 2011
- Tongue
- French
- Weight
- 500 KB
- Volume
- 52
- Category
- Article
- ISSN
- 0040-4039
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β¦ Synopsis
Glycosylation of the acid labile protopanaxadiol derivatives was succeeded with a glycosyl orthohexynylbenzoate as donor under the catalysis of PPh 3 AuNTf 2 , leading to the subsequent elaboration of ginsenoside Rh2 and chikusetsusaponin-LT8 in a concise manner.
π SIMILAR VOLUMES
## Abstract Glycosyl __ortho__βalkynylbenzoates have emerged as a new generation of donors for glycosidation under the catalysis of gold(I) complexes such as Ph~3~PAuOTf and Ph~3~PAuNTf~2~ (Tf=trifluoromethanesulfonate). A wide variety of these donors, including 2βdeoxy sugar and sialyl donors, are