反应详情

温度

80 °C

A mixture of N-cyclopropyl-2-(2,5-dichloropyrimidin-4-yl)-1-(ethoxymethyl)-1H-indole-4-carboxamide (30 g, 75 mmol), (1R,2R)-2-aminocyclopentanol hydrochloride (12.3 g, 90 mmol) and DIPEA (37.5 mL, 225 mmol) in DMSO (150 mL) is stirred at 80° C. for 16 h, then poured into water (1 L), and extracted with EA (2×500 mL). The combined extracts are washed with aqueous saturated sodium chloride (500 mL), dried over Na2SO4 and concentrated in vacuo. The residue is purified by chromatography on silica gel to give 2-{5-chloro-2-[(1R,2R)-2-hydroxycyclopentylamino]pyrimidin-4-yl}-N-cyclopropyl-1-(ethoxymethyl)-1H-indole-4-carboxamide (33 g, 93%). MS (m/z): 470 (35Cl) and 472 (37Cl) (M+H)+.

1. extractionextracted with EA (2×500 mL)
2. washThe combined extracts are washed with aqueous saturated sodium chloride (500 mL)
3. dry with materialdried over Na2SO4
4. concentrationconcentrated in vacuo
5. customThe residue is purified by chromatography on silica gel