反应详情

To a solution of 2-methyl-8-(trifluoromethyl)-2,3,4,5-tetrahydro-1H-pyrido[4,3-b]indole (1.0 g, 3.937 mmol) in DMF (10 mL) was added sodium hydride (472 mg, 11.81 mmol) in portions at RT. After stirring at RT for 15 min, the suspension was allowed to cool to 0° C. and 4-(oxiran-2-yl)pyridine (762 mg, 6.299 mmol) was added dropwise into the reaction mixture, which was stirred at RT overnight. The reaction mixture was poured into ice-cooled water and extracted with EtOAc (3×50 mL). The organic layer was washed with water (2×50 mL), dried over anhydrous sodium sulfate and concentrated. The solid obtained was re-crystallized in DCM-diethyl ether to yield 2-(2-methyl-8-(trifluoromethyl)-3,4-dihydro-1H-pyrido[4,3-b]indol-5(2H)-yl)-1-(pyridin-4-yl)ethanol. 1H NMR (CDCl3, freebase) δ (ppm): 8.59 (d, 2H), 7.4 (s, 1H), 7.39 (d, 1H), 7.3 (d, 1H), 7.19 (d, 2H), 4.68 (m, 1H), 4.1 (m, 2H), 3.4 (dd, 2H), 2.82 (m, 1H), 2.74 (bs, 2H), 2.6 (m, 1H), 2.4 (s, 3H). Separation by chiral HPLC provides enantiomers 6a and 6b.

1. temperatureto cool to 0° C.
2. stirringwas stirred at RT overnight
3. additionThe reaction mixture was poured into ice-
4. extractionextracted with EtOAc (3×50 mL)
5. washThe organic layer was washed with water (2×50 mL)
6. dry with materialdried over anhydrous sodium sulfate
7. concentrationconcentrated
8. customThe solid obtained
9. customwas re-crystallized in DCM-diethyl ether