Methyl p-toluenesulfonate → HCID 178482724, compound

Participants

Reaction Conditions

Reaction Steps

(1R)-N-benzyl-2-(1H-indol-3-yl)-1-(4-phenyl-1H-imidazol-2-yl)ethanamine (0.5 g; 0.00127 mol; prepared according to experimental conditions analogous to that of example 38 using the appropriate starting compounds and reaction products) was diluted in 25 ml tetrahydrofurane. Methyl tosylate (0.24 g; 0.00127 mol) was added to the preceding at about 23° C. and then potassium tert-butylate (0.15 g; 0.00127 mol) was added quite slowly. Agitation at about 23° C. was maintained for about two hours and then the mixture was heated to around 60° C. for about 8 hours. The solvent was evaporated and the residue obtained taken up in ethyl acetate and a 10% sodium bicarbonate solution. After phase separation, the organic phase was washed with water and dried over magnesium sulfate. The solvent was then evaporated. After purification over a silica column (eluent: ethyl acetate-heptane/7-3), a light beige solid was obtained in the form of a glue (yield of 4%). Free base. Melting point: 110-112° C. MH+=407.3.

Provenance & Evidence