反应详情

Solid HATU (4.0 g, 10.6 mmol) was added to a THF solution (100 mL) of 5-bromopicolinic acid (2.1 g, 10.6 mmol), i-Pr2NEt (7.4 mL, 42.4 mmol), and (3-alanine t-butyl ester hydrochloride (2.1 g, 11.7) and the resulting mixture was warmed to 45° C. After 16 h the resulting mixture was diluted with EtOAc, washed with water and brine, dried (Na2SO4), concentrated and purified via column chromatography to yield the title compound.

1. washwashed with water and brine
2. dry with materialdried (Na2SO4)
3. concentrationconcentrated
4. custompurified via column chromatography