反应详情

Compound 2-3 (0.050 g, 0.16 mmoles) was dissolved in 6 mL of methylene chloride. To the reaction vessel was added (0.06 mL, 0.32 mmoles) of N,N-diisopropylethylamine and (200 mg, 0.32 mmols, 1.49 mmol/gram) followed by the addition of (0.057 g, 0.32 mmol) picolinoyl chloride. The mixture was stirred until complete by TLC. The compound was then filtered and then the solvent was removed and then purified on a mass guided LC/MS to provide 46 mg (70%) of the title compound. 1H NMR (300 MHz, CDCl3): 8.89 ppm (s, 2H), 8.43 ppm (m, 2H), 8.22 ppm (m, 2H), 8.13 ppm (t, J=4 Hz, 1H), 8.0 ppm (s, 1H), 7.81 ppm (m, 2H), 7.41 ppm (m, 1H), 7.2 ppm (m, 2H), 4.22 ppm (d, J=4 Hz, 2H); HRMS calc'd for C19H15BrN4O2 (M+1) 411.0451; Found: 411.0444

1. filtrationThe compound was then filtered
2. customthe solvent was removed
3. custompurified on a mass