Scheme 6.
Glycosylation of 34 to linker 23 and subsequent Staudinger reduction of the azide. Reactions and conditions: (a) TMSOTf, DCM, −15 °C, 30 min; (b) PMe3, NEt3, H2O, THF, 25 °C, 30 min; (c) NaOMe, MeOH, DCM, rt.
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.