反应详情

4-(2-Fluoro-5-methylanilino)-2-chloropyrimidine (Reference Example A-10, 140 mg, 0.6 mmol) was dissolved in dry NMP (2 ml) and 4-(3-morpholinopropoxy)aniline.2.HBr salt (see CAS Registry No. 100800–40–6; J.Am.Chem.Soc., 76, 1954, 4396; 188 mg, 0.5 mmol) added. The mixture was stirred at ambient temperature for 5 minutes, then checked to ensure the reaction mixture was acidic (pH 1) and heated at 100° C. for 3 hours. The mixture was allowed to cool and evaporated to dryness to give an oil. Silica (2 g) and DCM (10 ml) were added and the mixture then re-evaporated to dryness and purified by chromatography on a Mega Bond Elute column (10 g) (eluting with DCM (2×25 ml), 2% NH3 in MeOH (3×25 ml), 4% NH3 in MeOH (3×25 ml), 6% NH3 in MeOH (3×25 ml), 10% NH3 in MeOH (9×25 ml)) to give the title product as a colourless oil, which was triturated with diethyl ether to give a white solid (95 mg, 46%). NMR (300 MHz): 1.8 (m, 2H), 2.2 (s, 3H), 2.4 (m, 4H), 2.4 (m, 2H), 3.6 (t, 3H), 3.9 (t, 2H), 6.2 (d, 1H), 6.8 (d, 2H), 6.9 (m, 1H), 7.1 (m, 1H), 7.5 (d, 2H), 7.8 (d, 1H), 8.0 (d, 1H), 8.9 (s, 2H); m/z: (ES+) 438.2 (MH+).

1. addition188 mg, 0.5 mmol) added
2. temperatureheated at 100° C. for 3 hours
3. temperatureto cool
4. customevaporated to dryness
5. customto give an oil
6. customthe mixture then re-evaporated to dryness
7. custompurified by chromatography on a Mega Bond
8. washElute
9. washcolumn (10 g) (eluting with DCM (2×25 ml), 2% NH3 in MeOH (3×25 ml), 4% NH3 in MeOH (3×25 ml), 6% NH3 in MeOH (3×25 ml), 10% NH3 in MeOH (9×25 ml))