Three-Component Synthesis and Cytotoxic Properties of Fluorine-Containing 1,4-Dihydropyridines with Hydroxyphenyl Substituents

The synthesis of fluorinated 1,4-dihydropyridines containing a 4-aminophenol fragment was demonstrated based on a multicomponent reaction of CH-acids (acetoacetic ester and ethyl 4,4-difluoroacetoacetate) with 4-fluorobenzaldehyde and aminophenols. It was shown that the interaction of ethyl 4,4,4-trifluoroacetoacetate with 4-fluorobenzaldehyde and 4-aminophenol results in the formation of an imine – a condensation product of the aldehyde with the amine. The cytotoxic activity in vitro of the synthesized compounds was determined. It was shown that the highest sensitivity to the toxic effect of 1,4-dihydropyridines was demonstrated by colorectal carcinoma cells HTC-116 (IC values 14.18 and 38.61 μm, respectively).