Sodium bis(trimethylsilyl)amide → HCID 18626427, compound

Participants

Reaction Steps

To a solution of the product of Step 1 (0.5 g (2.3 mmol)) in 5.0 ml of dry dimethyl sulfoxide was added 2.4 ml (2.4 mmol) of a 1M solution of sodium hexamethyldisilazide in tetrahydrofuran. After 10 minutes, a solution of 0.72 g (2.4 mmol) of the product of 4-(2-iodoacetyl)-1-(benzyloxycarbonyl)piperidine was added in 1 ml dimethyl sulfoxide dropwise. The reaction mixture was stirred for 2 hours, diluted with ethyl acetate (EtOAc, 20 ml) and washed with water (3×10 ml). The combined organic phases were washed with brine and dried over MgSO4. The mixture was filtered and the filtrate was concentrated in vacuo. The residue was purified by MPLC over silica gel eluting with 2% MeOH/CH2Cl2 to give the desired product. FAB ms: C28H27N2O4F:474; Observed: 475 (M++1).

Provenance & Evidence