5-Bromopyrimidine → HCID 21876226, compound

Participants

Reaction Conditions

Reaction Steps

To a solution of 2-{4-[2-ethyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-benzimidazol-1-yl]phenyl}ethanol (step 1, 100 mg, 0.26 mmol) and 5-bromopyrimidine (45 mg, 0.28 mmol) in 1,2-dimethoxyethane (3.5 ml) was added sat. NaHCO3 aq. (1.2 ml) and Pd(PPh3)4 (60 mg, 0.05 mmol). This mixture was stirred at 70° C. for 17 h. The reaction mixture was diluted with water and extracted with CH2Cl2 (3×10 ml). The organic layer was dried (MgSO4) and concentrated to give light brown oil. This mixture was purified by SiO2 preparative TLC (CH2Cl2/methanol=10/1) to afford 45 mg (50%) of the title compound.

Provenance & Evidence