反应详情

温度

75 °C

(2R)-8-Methyl-2,3-dihydro[1,4]dioxino[2,3-f]quinolin-2-ylmethyl 4-methylbenzenesulfonate (0.60 g, 1.6 mmole) and 7-ethyl-3-(1,2,3,6-tetrahydro-4-pyridinyl)-1H-indole (1.0 g, 4.4 mmole) were combined in 10 mL of DMSO. The mixture was heated at 70-80° C. under nitrogen for 6 hours. After cooling to room temperature, the mixture was partitioned between 400 mL each of ethyl acetate and saturated aqueous sodium bicarbonate. The organic phase was removed, washed with 400 mL portions of water and saturated brine, dried over sodium sulfate, filtered and concentrated to dryness under vacuum. The residue was column chromatographed on silica gel using 0-2% methanol/chloroform. The product fractions were concentrated in vacuum and the residue triturated with ether to give 0.16 g of the (S)-enantiomer of the title compound as a yellow solid, m.p. 85-90° C.

1. temperatureAfter cooling to room temperature
2. customthe mixture was partitioned between 400 mL each of ethyl acetate and saturated aqueous sodium bicarbonate
3. customThe organic phase was removed
4. washwashed with 400 mL portions of water and saturated brine
5. dry with materialdried over sodium sulfate
6. filtrationfiltered
7. concentrationconcentrated to dryness under vacuum
8. customchromatographed on silica gel using 0-2% methanol/chloroform
9. concentrationThe product fractions were concentrated in vacuum
10. customthe residue triturated with ether