Water → HCID 68997739, compound

Participants

Reaction Conditions

Reaction Steps

(E)-2-(4-{3-amino-4-[2-(1H-indazol-3-yl)vinyl]phenyl}piperazin-1-yl)ethanol (0.10 g, 0.28 mmol) obtained in Step 3 of Example 273 was dissolved in p-xylene (3.5 mL) and the solution was added with phthalic anhydride (49 mg, 0.33 mmol), triethylamine (0.02 mL, 0.14 mmol), molecular sieves 3A (0.10 g), followed by stirring at 140° C. for 25 hours. The solution was added with water and extracted with ethyl acetate. The organic layer was washed with saturated brine, dried over anhydrous magnesium sulfate and the solvent was evaporated under reduced pressure. The filtrate was reslurried with ethyl acetate to obtain Compound 299 (4.5 mg, 3%).

Provenance & Evidence