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.
Preparation of 14–17 from d-glucose.
Reagents and conditions: (a) MeOH, Ac-Cl, refluxing, 72 h; (b) PhCHO, triethyl orthoformate, p-toluenesulfonic acid monohydrate, THF, 85 °C, 16 h; (c) PhCH2Br, NaH, DMF, at room temperature, 4 h; (d) PhCHO, p-toluenesulfonic acid monohydrate, DMF, 85 °C, 16 h. * The intermediate 17 was obtained as a mixture of α,β-anomers.
