Sodium borohydride → 8-tert-Butyl-4-(2-hydroxymethyl-3-{1-methyl-5-[5-(morpholine-4-carbonyl)-pyridin-2-ylamino]-6-oxo-1,6-dihydro-pyridin-3-yl}-phenyl)-3,4-dihydro-2H-benzo[f][1,4]oxazepin-5-one

関与物質

反応手順

To 2-(8-tert-Butyl-5-oxo-2,3-dihydro-5H-benzo[f][1,4]oxazepin-4-yl)-6-{1-methyl-5-[5-(morpholine-4-carbonyl)-pyridin-2-ylamino]-6-oxo-1,6-dihydro-pyridin-3-yl}-benzaldehyde (0.27 mmol) in isopropanol (5 mL) and THF (10 mL) at 0 C with stirring was added sodium borohydride (21 mg, 2 eq) and then the ice bath was removed and the resulting mixture was stirred at room temperature for 45 minutes. TLC analysis indicated that the reaction was complete so the mixture was diluted with ethyl acetate (150 mL) and water (50 mL). The layers were partitioned, then separated and the organic layer was further washed with water (3×50 mL) and then finally washed with brine ((1×50 mL). The ethyl acetate layer was dried over magnesium sulfate, filtered and concentrated. Purification by Thin Layer Chromatography on silica gel eluting with 10% methanol in dichloromethane afforded the title compound as a light grey powder (94 mg), (M+H)+=638.

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