1.
Org Lett
; 22(21): 8613-8617, 2020 11 06.
Artigo
em Inglês
| MEDLINE
| ID: mdl-33074676
RESUMO
With glycosyl o-alkynylbenzotes as donors, a highly efficient protocol to construct the challenging glycosidic linkages at C3-OH of C23-oxo oleanane triterpenoids is disclosed, on the basis of which different strategies for the highly efficient synthesis of QS-21 analogues with the west-wing trisaccharide of QS-21 have been established.