Water → HCID 58466322, compound

Participants

Reaction Conditions

Reaction Steps

2-Fluoro-7-(2-fluoropyridin-3-yl)-3-iodo-5′H-spiro[chromeno[2,3-b]pyridine-5,4′-oxazol]-2′-amine (0.151 g, 0.307 mmol), 2-(3,6-dihydro-2H-pyran-4-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (0.150 g, 0.71 mmol), tetrakis(triphenylphosphine)palladium (0.177 g, 0.153 mmol), and potassium phosphate (0.102 mL, 1.227 mmol) were suspended in dioxane (2 mL) and water (0.5 mL) and sealed in a microwave vessel under argon. The mixture was heated to 120° C. for 20 minutes. The reaction mixture was concentrated under reduced pressure and partitioned between water (80 mL) and ethyl acetate (80 mL). The organic was dried with magnesium sulfate and evaporated to dryness under reduced pressure. Purification using silica chromatography (1-4% methanol in dichloromethane gradient) gave 3-(3,6-dihydro-2H-pyran-4-yl)-2-fluoro-7-(2-fluoropyridin-3-yl)-5′H-spiro[chromeno[2,3-b]pyridine-5,4′-oxazol]-2′-amine.

Provenance & Evidence