反应详情

A solution of 0.83 gm (2.28 mMol) N-(2-pyridinyl)-2-(4-(6-chloro-1H-indol-3-yl)-1,2,3,6-tetrahydropyridin-1-yl)acetamide in 20 mL tetrahydrofuran was added dropwise to a slurry of 0.130 gm (3.41 mMol) lithium aluminum hydride in 10 mL tetrahydrofuran at 0° C. at such a rate as to maintain the reaction temperature >5° C. The reaction mixture was then allowed to warm to room temperature over 2 hours. The reaction mixture was then quenched by the sequential addition of water, 15% aqueous sodium hydroxide, and water with vigorous stirring. The resulting slurry was filtered through a bed of celite and the filtrate concentrated under reduced pressure. The residue was subjected to silica gel chromatography, eluting with a chloroform gradient containing 5-8% methanol. Fractions containing product were combined and concentrated under reduced pressure to provide 0.31 gm (39%) of the desired compound.

1. temperatureto maintain the reaction temperature >5° C
2. customThe reaction mixture was then quenched by the sequential addition of water, 15% aqueous sodium hydroxide, and water with vigorous stirring
3. filtrationThe resulting slurry was filtered through a bed of celite
4. concentrationthe filtrate concentrated under reduced pressure
5. washeluting with a chloroform gradient
6. additioncontaining 5-8% methanol
7. additionFractions containing product
8. concentrationconcentrated under reduced pressure