Scheme 2. Synthesis of indazole 11.
(a) MeI, Cs2CO3, DMF, rt, 27%; (b) DIBAL, DCM, −78 °C to rt, 67%; (c) Dess–Martin periodinane, DCM, rt, 91%; (d) dimethylamine hydrochloride, NaBH(OAc)3, DCM, rt, 33%.
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.