反应详情

温度

90 °C

In a tube is combined 2-methoxy-6-[2-(4-methoxy-phenyl)-ethylamino]-pyrimidine-4-carbaldehyde [120 mg, 0.42 mmol, Intermediate (59)], tosylmethylisocyanide (90 mg, 0.46 mmol), Ambersep 900 OH resin (800 mg), ethylene glycol dimethyl ether (3.5 mL) and water (3.5 mL). The tube is sealed and the mixture is heated to 90° C. and stirred for 18 hours. The mixture is allowed to cool to ambient temperature and filtered to remove the resin, and the resin is washed with MeOH (10 mL). The combined filtrate and washings are concentrated by rotary evaporator and the residue is subjected to flash column chromatography on silica gel eluting with 0 to 40% EtOAc in heptane gradient) to afford (2-methoxy-6-oxazol-5-yl-pyrimidin-4-yl)-[2-(4-methoxy-phenyl)-ethyl]-amine [11.6 mg, 8.5%, Example 45]. LCMS: RT=2.57 minutes, MS: 327 (M+H). IC50=7.8 nM

1. customIn a tube is combined
2. customThe tube is sealed
3. temperatureto cool to ambient temperature
4. filtrationfiltered
5. customto remove the resin
6. washthe resin is washed with MeOH (10 mL)
7. concentrationThe combined filtrate and washings are concentrated by rotary evaporator