反应详情

3,5-dichloro-4-[(2-cyclopentyl-6-methyl-5-oxo-2,6,9,11-tetrazabicyclo[5.4.0]undeca-7,9,11-trien-10-yl)amino]-2-fluoro-benzoic acid (Intermediate 221; 85 mg, 0.18 mmol), HATU (104 mg, 0.27 mmol) and 4-amino-1-methylpiperidine (32 mg, 0.27 mmol) were stirred in DMF (3 mL) and diisopropylethylamine (95 μl, 0.54 mmol) added. The mixture was stirred for 2 hours and absorbed on to an SCX column, which was subsequently washed with methanol and eluted with ammonia in methanol. Product containing fractions were combined and evaporated and the residue purified by column chromatography (4% ammonia in methanol/DCM) to yield the title compound as a white solid (67 mg, 66%).

1. customabsorbed on to an SCX column, which
2. washwas subsequently washed with methanol
3. washeluted with ammonia in methanol
4. additionProduct containing fractions
5. customevaporated
6. customthe residue purified by column chromatography (4% ammonia in methanol/DCM)