Scheme 2. Synthesis of the Compounds from Group A (5a–5r) and Group B (6a, 6b).
Reagents and condition: (a) DCM, N(CH2CH3)3, 24 h 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.