2-(Benzenesulfonyl)-3-phenyloxaziridine → HCID 11312463, compound

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Reaction Steps

8-Cyclopentyl-6-fluoro-2-methylsulfanyl-8H-pyrido[2,3-d]pyrimidin-7-one (10.5 g, 37.9 mmol) and 2-benzenesulfonyl-3-phenyl-oxaziridine (11.8 g, 45.4 mmol) were combined in dichloromethane (120 ml) and stirred at room temperature for 18 hours. The mixture was evaporated to an oil, crystallized from ethyl acetate/diethyl ether, filtered and dried in vacuo to provide 8-cyclopentyl-6-fluoro-2-methanesulfinyl-8H-pyrido[2,3-d]pyrimidin-7-one as a white solid (8.88 g, 79.6%).

Provenance & Evidence