HCID 86637515, compound → HCID 86637514, compound

Participants

Reaction Steps

To a solution of 1.61 g (0.0038 mole) of 3-[(2-chloro-5-nitro-pyrimidin-4-yl)-(3-phenyl-propyl)-amino]-2,2-difluoro-propionic acid ethyl ester (IV-281) in 25 mL of acetic acid was added 1.6 g (0.029 g-atom) of iron powder. The mixture was heated to 80 degrees for 2 hours and then filtered while hot. Water and ethyl acetate were added to the filtrate and the mixture was stirred for 10 minutes and then filtered. The layers were separated. The organic layer was washed successively with ammonium hydroxide and water, dried over anhydrous magnesium sulfate, filtered and concentrated under reduced pressure to give 1.09 g of 2-chloro-7,7-difluoro-9-(3-phenyl-propyl)-5,7,8,9-tetrahydro-pyrimido[4,5-b][1,4]diazepin-6-one (VI-281) as a yellow foam.

Provenance & Evidence