Methyl iodide → HCID 21254871, compound

Participants

Reaction Steps

Under anhydrous conditions, a solution of [2-chloro-4-(1-methyl-1H-pyrazol-3-yl)-phenyl]-(5,11-dihydro-pyrido[2,3-b][1,5]benzodiazepin-10-yl)-methanone of Example 19 (0.382 g, 0.92 mmol) in 10 mL of tetrahydrofuran was added dropwise to a stirred slurry of hexane washed sodium hydride (0.025 g, 1.02 mmol) in 2 mL of tetrahydrofuran. After the gas evolution ceased, methyl iodide (1 mL) was added and stirring was continued for 2 hours. The reaction mixture was partitioned between ethyl acetate and water. The organic layer was washed with brine and dried over sodium sulfate. The solvent was removed and the crude product purified by flash chromatography (on silica Merck-60, dichloromethane-ethyl acetate 2:1) to give the title compound (0.18 g, 47%). Crystallization from diethylether provided a light yellow solid (0.16 g), m.p. 249-250° C.

Provenance & Evidence