Methyl 2-(3-(cyclopropylmethyl)-2-oxoimidazolidin-1-yl)thiazole-5-carboxylate → 2-(3-(Cyclopropylmethyl)-2-oxoimidazolidin-1-yl)thiazole-5-carboxylic acid

Participants

Reaction Steps

Following the procedure as described in Example 25, making variations as required to replace ethyl 3-((3-(5-(benzylcarbamoyl)-4-methylthiazol-2-yl)-2-oxoimidazolidin-1-yl)methyl)benzoate with methyl 2-(3-(cyclopropylmethyl)-2-oxoimidazolidin-1-yl)thiazole-5-carboxylate, the title compound was obtained as a colorless solid in 93% yield: mp 250-252 (water); 1H NMR (300 MHz, DMSO-d6) δ 12.97 (s, 1H), 7.93 (s, 1H), 4.03-3.96 (m, 2H), 3.66-3.61 (m, 2H), 3.08 (d, J=7.1 Hz, 2H), 0.96-0.87 (m, 1H), 0.49-0.43 (m, 2H), 0.21-0.16 (m, 2H); 13C NMR (75 MHz, DMSO-d6) δ 163.3, 162.8, 155.0, 145.2, 122.4, 48.2, 42.5, 42.4, 9.27, 3.62; MS (ES+) m/z 268.2 (M+1).

Provenance & Evidence