HCID 59656523, compound → HCID 59656330, compound

Participants

Reaction Conditions

Reaction Steps

To a 0° C. solution of 4-(1-benzyl-piperidin-4-ylsulfamoyl)-naphthalene-1-carboxylic acid methoxy-methyl-amide 35 (200 mg, 0.43 mmol) in THF (5 mL) was slowly added methylmagnesium bromide (5.71 mL, 17.1 mmol, 1M THF solution). After stirring at 25° C. for 4 h, the resultant mixture was quenched with saturated ammonium chloride solution. The aqueous layer was extracted with CH2Cl2. The organic extracts were combined, washed with brine and dried over MgSO4. The solution was filtered and concentrated in vacuo to give the crude product. The crude material was purified by Flash column chromatography (hexane/EtOAc) to provide 118 mg of 4-acetyl-naphthalene-1-sulfonic acid (1-benzyl-piperidin-4-yl)-amide 36 in 56% overall yield (for two steps).LC/MS showed m/z : 423 (M+H)+.

Provenance & Evidence