Borane → HCID 44555151, compound

Participants

Reaction Steps

A solution of 4-methylthiazole (0.15 mL, 1.65 mmol) in dry THF (7.5 mL) was cooled to −78° C. under nitrogen, treated with n-BuLi (1.0 mL, 1.65 mmol) and stirred for 30 minutes, then ZnCl (1-M, 1.65 mL, 1.65 mmol) was added, and the reaction mixture was warmed to room temperature. 7-Chloro-3-(6-methoxymethylpyridin-2-ylmethyl)-3H-[1,2,3]triazolo[4,5-d]pyrimidin-5-amine (250 mg, 0.825 mmol) was then added followed by Pd(PPh3)4 (48 mg, 0.04 mmol) and the reaction mixture heated to reflux for 1 h. The reaction mixture was cooled to room temperature, quenched with ammonium chloride and extracted with ethyl acetate. The organic phase was washed with water, dried and concentrated in vacuo. The crude product was purified by chromatography (eluant: EtOAc-heptane 1:1 to 2:1) to give the title compound (38 mg, 13%) as a yellow solid.

Provenance & Evidence