Thionyl Chloride → HCID 67310580, compound

Participants

Reaction Steps

1-(8-Chloro-1,2,3,4-tetrahydro-2-methylpyrido[4,3-b]indol-5-yl)-2-(3-methylpyridin-4-yl)propan-2-ol (300 mg, 0.813 mmol) in SOCl2 (4 mL) was stirred at RT for 1 h. Excess SOCl2 was removed under vacuum to obtain 8-chloro-5-[2-chloro-2-(3-methyl-pyridin-4-yl)-propyl]-2-methyl-2,3,4,5-tetrahydro-1H-pyrido[4,3-b]indole (305 mg, 0.78 mmol) which was dissolved in NMP (3 mL). Powdered KOH (308.14 mg, 5.50 mmol) was added and the contents heated at 80° C. for 2 h. The progress of the reaction was monitored by TLC and LCMS. After completion of reaction, The reaction mixture was poured on ice cold water. The aqueous phase was extracted with EtOAc (500 mL). The organic layer was washed with water (100 mL), dried over anhydrous sodium sulfate and concentrated under vacuum to obtain the crude product, which was subjected to reverse phase HPLC to yield 5 mg of the desired product. 1H NMR (CD3OD, HCl salt) δ (ppm): 8.84 (s, 1H), 8.78 (d, 1H), 8.18 (d, 1H), 7.60 (s, 1H), 7.38 (d, 1H), 7.30 (d, 1H), 6.98 (s, 1H), 4.40 (d, 1H), 3.90 (m, 1H), 3.62 (m, 1H), 3.22 (m, 2H), 3.16 (s, 3H), 2.70 (s, 3H), 2.0 (s, 3H).

Provenance & Evidence