反应详情

5-(3-bromo-1,2,4-thiadiazol-5-yl)-3-chloro-2-[(1-methylethyl)oxy]pyridine (D109) (1.3 g, 3.89 mmol), 2-{2-ethyl-3-[(E)-2-(methyloxy)ethenyl]phenyl}-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (2.239 g, 7.77 mmol), tripotassium phosphate (2.474 g, 11.66 mmol) and Pd(Ph3P)4 (0.449 g, 0.389 mmol) in N,N-Dimethylformamide (DMF) (5 mL) and Water (5.00 mL) were heated by Biotage Initiator to 120° C. for 30 min. The reaction solution was concentrated and the slurry was diluted with ethyl acetate, washed with water, dried and purified by ISCO column chromatography to afford 3-chloro-5-(3-{2-ethyl-3-[(E)-2-(methyloxy)ethenyl]phenyl}-1,2,4-thiadiazol-5-yl)-2-[(1-methylethyl)oxy]pyridine (D110) (2 g). MS (ES): C21H22ClN3O2S requires 415.1. found 416.1 (M+H+).

1. concentrationThe reaction solution was concentrated
2. additionthe slurry was diluted with ethyl acetate
3. washwashed with water
4. customdried
5. custompurified by ISCO column chromatography