Abstract
A convenient 4-step synthesis of calceolarioside-B 1 and eutigoside-A 2 in high overall yield is described. The key step involved the regioselective, Me2SnCl2-catalyzed O-6 acylation of unprotected 2-phenylethyl-β-D-glucosides 5a–b with cinnamoyl chlorides 6a–b in excellent yields. Acylation at O-6 is selective with the acid chlorides used. This work serves as a model for the convenient synthesis of phenylpropanoid glycosides acylated at O-6.
Original language | English |
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Pages (from-to) | 109-111 |
Number of pages | 3 |
Journal | Tetrahedron Letters |
Volume | 58 |
Issue number | 1 |
DOIs | |
Publication status | Published - 2017 |
Externally published | Yes |
Bibliographical note
Publisher Copyright:© 2016 Elsevier Ltd
ASJC Scopus Subject Areas
- Biochemistry
- Drug Discovery
- Organic Chemistry
Keywords
- Calceolarioside-B
- Dimethyltin dichloride
- Eutigoside-A
- Phenylpropanoid glycosides
- Regioselective acylation