Potassium Phosphate, Tribasic → HCID 53372880, compound

Participants

Reaction Steps

A solution of 2,8-dimethyl-2,3,4,5-tetrahydro-1H-pyrido[4,3-b]indole (0.1 g, 1 mmol), 5-bromoisoquinoline (208 mg, 1 mmol), K3PO4 (318 mg, 1.5 mmol), L-Proline (11.5 mg, 0.2 mmol) and CuI (9.5 mg, 0.05 mmol) in dry DMF (2 mL) was stirred at 150° C. for 24 h. The reaction mixture was cooled to RT, diluted with water and extracted with EtOAc. The organic layer was dried over anhydrous sodium sulfate and concentrated under reduced pressure to afford crude material, which was purified by reverse phase HPLC to yield 5-isoquinolin-5-yl-2,8-dimethyl-2,3,4,5-tetrahydro-1H-pyrido[4,3-b]indole as an off white solid (20 mg). 1H NMR (Oxalate salt, CD3OD) d (ppm): 9.42 (s, 1H), 8.40 (m, 2H), 7.90 (m, 2H), 7.40 (s, 1H), 7.08 (d, 1H), 6.99 (d, 1H), 6.70 (d, 1H), 4.65 (m, 2H), 3.70 (m, 2H), 3.18 (s, 3H), 3.0 (m, 1H), 2.72 (m, 1H), 2.42 (s, 3H).

Provenance & Evidence