tert-butyl (3S,4S)-3,4-dihydroxypyrrolidine-1-carboxylate → (3S,4S)-tert-butyl 3-(3-(3-ethyl-1-((6-methylpyridin-2-yl)methyl)-1H-indazol-4-ylcarbamoyl)imidazo[1,2-a]pyridin-7-yloxy)-4-hydroxypyrrolidine-1-carboxylate

Beteiligte Stoffe

Reaktionsbedingungen

Reaktionsschritte

To N-(3-ethyl-1-((6-methylpyridin-2-yl)methyl)-1H-indazol-4-yl)-7-fluoroimidazo[1,2-a]pyridine-3-carboxamide (32 mg, 0.075 mmol; prepared as in Example 74, Step A) in THF/t-BuOH (1 mL/1 mL) was added (3S,4S)-tert-butyl 3,4-dihydroxypyrrolidine-1-carboxylate (61 mg, 0.30 mmol) and potassium tert-butoxide (67 mg, 0.60 mmol). The reaction was heated with microwave at 100° C. for 50 minutes, and then concentrated under reduced pressure. Silica gel chromatography (DCM/MeOH 10:1) gave the crude product (42 mg).

Herkunft & Nachweise