Lithium borohydride → HCID 22397075, compound

Participants

Reaction Steps

To a solution of N-(4-amino-2-methoxycarbonyl-6-quinolyl)-2-[(4-methylphenoxy)methyl]benzamide (170 mg, 0.385 mmol) obtained in Example 131, Step 5 in tetrahydrofuran (10 ml) was added, by small portions, lithium tetrahydroborate (42 mg, 1.927 mmol) under ice-cooling in an argon stream. After 10 min, the mixture was warmed to room temperature and the mixture was stirred for 2 hr. The reaction mire was diluted with saturated brine and ethyl acetate to separate the layers. The organic layer was washed with saturated brine, dried over anhydrous sodium sulfate and concentrated under reduced pressure. The obtained yellow residue was dissolved in ethyl acetate and 4N hydrochloric acid-dioxane solution (0.5 ml) was added to precipitate hydrochloride. This salt was collected by filtration and dried under reduced pressure at 80° C. to give the title compound (116 mg, 67%, pale-yellow crystals).

Provenance & Evidence