Tetrahydrofuran → 4-(1-cyclopentyl-7-fluoro-1H-indazol-3-yl)phenyl phenyl hydrogen phosphate

Participants

Reaction Steps

A solution of 4-(1-cyclopentyl-7-fluoro-1H-indazol-3-yl)phenol (0.30 g, 1.0 mmol), phenyl dichlorophosphate (0.211 mL, 1.1 mmol), and lithiumhexamethyidisilazide (0.183 g, 1.1 mmol) in 10 mL of THF was stirred for 1 hour at ambient temperature. The reaction mixture was quenched with H2O and concentrated in vacuo. The residues were purified by reversed phase HPLC (Column: HS Hyperprep C18 8 u ID 22 mm; solvent gradient 40% to 100% acetonitrile (0.1% TFA) in H2O; flowrate 10 mL/min) to give 0.120 g of the title compound as an oil.

Provenance & Evidence