2-(4-Fluorophenyl)ethane-1-thiol → 2-[2-(4-Fluoro-phenyl)-ethylsulfanyl]-3-(4-(2-hydroxy-ethyl)-phenyl)-propionic acid 2,2,2-trichloro-ethyl ester

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The title compound was prepared from 2-chloro-3-[4-(2-hydroxy-ethyl)-phenyl]-propionic acid 2,2,2-trichloro-ethyl ester (2.57 g, 7.14 mmol) and 2-(4-fluoro-phenyl)-ethanethiol (1.23 g, 7.85 mmol) as described for 3-[4-(tert-butyl-dimethyl-silanyloxy-methyl)-phenyl]-2-[2-(4-fluoro-phenyl)-ethylsulfanyl]-propionic acid methyl ester. After purification by flash chromatography with n-heptane/EtOAc 5:1 as the eluent the product was obtained as an oil (1.0 g, 29.2%). 1H NMR (300 MHz, CDCl3): δ 7.10-7.14 (m, 6H), 6.93-6.99 (t, 2H), 4.65-4.76 (q, 2H), 3.82-3.86 (t, 2H), 3.55-3.60 (dd, 2H), 3.17-3.25 (dd, 2H), 2.81-3.00 (m, 7H).

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