[Br:1][C:2]1[CH:10]=[CH:9][C:5]([C:6]([OH:8])=O)=[C:4]([CH3:11])[CH:3]=1.O=S(Cl)Cl.[CH:16]1([NH2:19])[CH2:18][CH2:17]1.N1C=CC=CC=1>CCOC(C)=O>[Br:1][C:2]1[CH:10]=[CH:9][C:5]([C:6]([NH:19][CH:16]2[CH2:18][CH2:17]2)=[O:8])=[C:4]([CH3:11])[CH:3]=1A solution of 4-bromo-2-methylbenzoic acid and SOCl2 was refluxed for 3 hours, cooled to room temperature and concentrated under reduced pressure. The residue was dissolved in 30 mL CH2Cl2 and combined with cyclopropyl amine (810.0 mg, 14.3 mmols) and pyridine (2.05 g, 26.0 mmols). The solution was stirred for 18 hours and then diluted with EtOAc before being washed with 5% aqueous HCl, saturated NaHCO3, and saturated aqueous NaCl. The solution was dried (MgSO4) and concentrated under reduced pressure leaving the title compound as a colorless solid.
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