Incorporate the fluoroalkyl group onto the pyridine ring. This could be achieved by using a suitable fluorination or fluoroalkylation reagent. The regioselectivity of this step is crucial, and you might need to use protecting groups or directing groups to achieve the desired outcome.
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Acetic acid, [[(1E)-2-phenyl-1-(trifluoromethyl)ethenyl]imino]-, ethyl ester, (2E)-
