Ethyl Acetate → 5-(5-methoxy-1,3-benzothiazol-2-yl)-N-methylpyridin-2-amine

Participants

Reaction Conditions

Reaction Steps

6-Methoxy-1,3-benzothiazole (0.100 g, 0.61 mmol) and 5-bromo-N-methylpyrimidin-2-amine (0.171 g, 0.91 mmol) were reacted according to the procedure used for the preparation of 2-(2-methoxypyrimidin-5-yl)-1,3-benzothiazole with the exception that the reaction was heated at 170° C. in a microwave reactor for 1.5 h. The reaction mixture was diluted with EtOAc and water and the mixture was filtered. The phases were separated and the aqueous layer was extracted with EtOAc (3×). The organic phase was washed with brine (2×), dried (MgSO4) and concentrated under vacuum. Flash chromatography (Heptane/EtOAc gradient) gave the title compound (54 mg) as a yellow solid. 1H NMR (CHLOROFORM-d) δ 8.93 (s, 2 H) 7.91 (d, 1 H) 7.35 (d, 1 H) 7.10 (dd, 1 H) 5.53 (br s, 1 H) 3.90 (s, 3 H) 3.11 (d, 3 H); MS m/z (M+H) 273.

Provenance & Evidence