2-(5-Methyl-2-thiophen-2-yloxazol-4-yl)ethyl tosylate → 2-(3-Fluoro-phenoxy)-2-methyl-3-{4-[2-(5-methyl-2-thiophen-2-yl-oxazol-4-yl)-ethoxy]-phenyl}-propionic Acid

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The title compound was prepared from 2-(3-fluoro-phenoxy)-3-(4-hydroxyphenyl)-2-methyl-propionic acid ethyl ester and toluene-4-sulfonic acid 2-(5-methyl-2-thiophen-2-yl-oxazol-4-yl)-ethyl ester according to the method of Example 21. 1H NMR (400 MHz, CDCl3) δ 7.64 (dd, 1H, J=3.5 Hz, 1.17 Hz), 7.41 (dd, 1H, J=5.1 Hz, 1.17 Hz), 7.19-7.16 (m, 3H), 7.08 (dd, 0.1H, J=5.1 Hz, 3.91 Hz), 6.81 (d, 2H, J=8.6 Hz), 6.75-6.62 (m, 3H), 4.17 (t, 2H, J=6.6 Hz), 3.26 (d, 1H, J=13.7 Hz), 3.14 (d, 1H, J=13.69 Hz), 2.98 (t, 2H, J=6.65 Hz), 2.36 (s, 3H), 1.45 (s, 3H). HRMS (ES+) m/z exact mass calcd for C26H25FNO5S 482.1437, found 482.1454.

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