Benzoyl chloride, 3-chloro- → 2-(3-Chlorobenzoylamino)-4-methylthiazole-5-carboxylic Acid Benzylamide

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Following the procedure as described in Example 2, making variations only as required to use 3-chlorobenzoyl chloride in place of benzoyl chloride to react with 2-amino-4-methylthiazole-5-carboxylic acid benzylamide, the title compound was obtained as a white solid in 32% yield; m.p. 178-179° C.; 1H NMR (CDCl3, 300 MHz) δ 8.05 (t, J=1.6 Hz, 1H), 7.86 (ddd, J=1.1, 1.6, and 7.8 Hz, 1H), 7.59-7.27 (m, 7H), 5.98 (t, J=5.3 Hz, 1H), 4.59 (d, J=5.6 Hz, 2H), 2.57 (s, 3H); MS (ES+) m/z 386 (M+1).

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