(6-methyl-2-p-tolyl-imidazo[1,2-a]pyridin-3-yl)-thioacetic acid S-pyridin-2-yl ester → 1-(4-Chloro-phenyl)-2-(6-methyl-2-p-tolyl-imidazo[1,2-a]pyridin-3-yl)-ethanone

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Prepared from (6-methyl-2-p-tolyl-imidazo[1,2-a]pyridin-3-yl)-thioacetic acid S-pyridin-2-yl ester 1c and 4-chlorophenylmagnesium bromide using a similar procedure described above. 1H NMR (400 MHz, CDCl3) δ 2.29 (s, 3H), 2.38 (s, 3H), 4.61 (s, 2H), 7.02 (d, J=9.8 Hz, 1H), 7.23 (d, J=8.0 Hz, 2H), 7.36 (d, J=8.8 Hz, 2H), 7.51 (t, J=9.1 Hz, 3H), 7.65 (s, 1H), 7.84 (d, J=8.4 Hz, 2H). Mass spectrum m/e 375 (M+).

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