1.
Org Lett
; 14(4): 1126-9, 2012 Feb 17.
Artigo
em Inglês
| MEDLINE
| ID: mdl-22300507
RESUMO
The profound effect of substituents at C-5 of glycosyl sialosides on their stereoselectivity is well-known although the exact nature of this effect is somewhat less understood. Presented herein is a comparative study of a range of novel sialyl donors with various O-substituents. It is demonstrated that O-substituents at C-4 and C-7 may also have a significant effect on the reactivity of sialyl donors and on the stereoselectivity of chemical sialylation.