Abstract

A simple and efficient protocol for the aza-Michael addition of various aromatic anilines to ring A of withaferin A has been developed. Stereoselectivity, functional group tolerance, broad substrate scope, short reaction time and moderate to high yield are the merits of the protocol. One of the synthesized compounds 11 shows an IC 50 value of 3.8 μM against aggressive, highly metastatic triple-negative breast cancer cell line MDA-MB-231.

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