反应详情

4-amino-2-fluoro-5-methoxybenzoic acid (Intermediate 183; 500 mg, 2.70 mmol), HATU (1.55 g, 4.05 mmol) and (3R)-1-methylpyrrolidin-3-amine di Hydrochloride (Intermediate 184; 631 mg, 3.31 mmol) were stirred in DMF (7.5 mL) and diisopropylethylamine (2.36 ml, 13.50 mmol) added. The reaction mixture was stirred for 2 hours and then absorbed on to an SCX column, which was then washed with methanol and eluted with ammonia in methanol. Product containing fractions were concentrated and purified by column chromatography (2.5% ammonia in methanol/DCM) to yield the title compound as a viscous brown oil. (662 mg, 92%).

1. customabsorbed on to an SCX column, which
2. washwas then washed with methanol
3. washeluted with ammonia in methanol
4. additionProduct containing fractions
5. concentrationwere concentrated
6. custompurified by column chromatography (2.5% ammonia in methanol/DCM)