Dimethylformamide → HCID 54458216, compound

Participants

Reaction Steps

A 15 mL round bottom flask was charged with (+)-(4aR)-(10bR)-4-methyl-8-mercapto-10b-methyl-1,2,3,4,4a,-5,6,10b-octahydrobenzo[f]quinolin-3-one (100 mg, 0.38 mmol), potassium carbonate (158 mg, 1.14 mmol), 2-chloro-3-nitropyridine (73 mg, 0.46 mmol) and 1.5 mL of anhydrous dimethylformamide, fitted with a reflux condenser, and the stirred mixture was heated at 60°, under nitrogen, for 18 h. The mixture was cooled, diluted with ethyl acetate (75 mL) and washed with brine (2×25 mL). The combined organic extracts were dried over sodium sulfate, concentrated, and purified by silica gel chromatography (90% ethyl acetate/hexanes eluent) to give 95 mg (65%) of the title compound as an amorphous foam. mp 80°-84°. FDMS: m/e=383. α[D]589 =+73.78 (c=0.49, chloroform).

Provenance & Evidence