Background: Genistein has been limited in clinical application due to its low bioavailability, extremely poor liposolubility, and fast glycosylation rate, though it possesses anti-breast cancer activity. Therefore, the discovery of novel genistein derivatives is an urgency.Objective: To enhance the anti-breast cancer activity of genistein, a series of novel fluorinated genistein derivatives were synthesized.Methods: Their in vitro antitumor activity was investigated by the MTT assay against three cancer cell lines, via, MDA-MB-231, MCF-7, and MDA-MB-435, respectively.Results: Analogs 1d, 2b, a...