Phosphorus oxychloride → HCID 86721447, compound

Participants

Reaction Conditions

Reaction Steps

[step 3] (E)-2-{3-fluoro-8-[(2-methyl-6-oxo-4-propyl-1,6-dihydropyrimidin-5-yl)methyl]dibenzo[b,e]oxepin-11(6H)-ylidene}propanenitrile (960 mg, 2.23 mmol) obtained in step 2 was dissolved in phosphorus oxychloride (2.5 mL, 26.8 mmol), and the mixture was stirred at 100° C. for 2 hr. The mixture was concentrated under reduced pressure, and the obtained residue was purified by silica gel column chromatography (hexane/ethyl acetate=1/1 v/v) to give (E)-2-{8-[(4-chloro-2-methyl-6-propylpyrimidin-5-yl)methyl]-3-fluorodibenzo[b,e]oxepin-11(6H)-ylidene}propanenitrile (970 mg, 97%).

Provenance & Evidence