(R)-(-)-2-Amino-1-phenylethanol → (R)-N-(2-hydroxy-2-phenylethyl)-4-methyl-2-(2-oxo-3-(4-(trifluoromethoxy)benzyl)imidazolidin-1-yl)thiazole-5-carboxamide

Participants

Reaction Steps

Following the procedure as describe in Example 9, making variations as required to replace 2-(3-benzyl-2-oxoimidazolidin-1-yl)-4-methylthiazole-5-carboxylic acid with 4-methyl-2-(2-oxo-3-(4-(trifluoromethoxy)benzyl)imidazolidin-1-yl)thiazole-5-carboxylic acid to react with (R)-(−)-2-amino-1-phenylethanol, the title compound was obtained as a white powder in 67% yield: mp 149-151° C. (ethyl acetate/hexanes); 1H NMR (300 MHz, CDCl3) δ 7.38-7.16 (m, 9H), 6.24 (br s, 1H), 4.92-4.89 (m, 1H), 4.44 (s, 2H), 4.28-4.02 (m, 2H), 3.85-3.41 (m, 2H), 3.57-3.38 (m, 3H), 2.54 (s, 3H); 13C NMR (75 MHz, CDCl3) δ 163.6, 157.5, 155.4, 152.8, 148.9, 141.7, 134.3, 129.7, 128.5, 127.8, 125.8, 121.4, 117.6, 73.5, 47.8, 47.2, 42.0, 41.7, 17.1; MS (ES+) m/z 521.3 (M+1).

Provenance & Evidence