Scheme 2. Synthesis of Hydrazide 15.
Reagents and conditions: (a) tert-butyl carbazate, TBTU, DMF, N-methylmorpholine, 22 °C, 8 h; (b) 4 M HCl in 1,4-dioxane, 22 °C, 24 h.
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.