Sodium Bicarbonate → HCID 67224828, compound

Participants

Reaction Conditions

Reaction Steps

A flask charged with Compound 12a (0.46 g, 1.13 mmol), (S)-tert-butyl 2-(5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)-1H-imidazol-2-yl)pyrrolidine-1-carboxylate (compound 20a, 0.55 g, 1.25 mmol), PdCl2(dppf) (0.036 g, 0.04 mmol), and sodium bicarbonate (0.33 g, 3.93 mmol) was flushed with nitrogen, then 1,2-dimethoxyethane (6 ml) and distilled water (2 ml) were added as solvent. The reaction mixture was stirred at 80° C. under nitrogen for 5 hours. After cooled to room temperature, the mixture was extracted with ethyl acetate/water, dried over magnesium sulfate, filtered, and then concentrated to give crude compound. The crude compound was purified by column chromatography (ethyl acetate: n-hexane=4:1) to yield a yellow solid (0.47 g).

Provenance & Evidence