Cyclopropanecarbonyl chloride → 2-(Cyclopropanecarbonylamino)-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 cyclopropanecarbonyl 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 87% yield; m. p. 241-243° C.; 1H NMR (DMSO-d6, 300 MHz) δ 12.5 (s, 1H), 8.49 (t, J=6.0 Hz, 1H), 7.31-7.17 (m, 5H), 4.34 (d, J=6.0 Hz, 2H), 1.94-1.84 (m, 1H), 1.15-1.08 (m, 4H); 13C NMR (DMSO-d6, 75 MHz) δ 172.7, 162.2, 157.3, 151.0, 140.1, 128.7, 127.6, 127.1, 118.8, 43.0, 17.4, 14.1, 9.0; MS (ES+) m/z 316.3 (M+1).

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