Sodium hydride → (S)-2-(2-(benzyloxy)-5-(4-chlorophenyl)-7-methylquinolin-6-yl)-2-tert-butoxyethanol

Participants

Reaction Steps

To the solution of (S)-2-tert-butoxy-2-(5-(4-chlorophenyl)-7-methyl-2-oxo-1,2-dihydroquinolin-6-yl)ethyl pivalate (8J) (16 mg, 0.03 mmol) in DMF (1 mL) was added sodium hydride (7 mg, 60% oil, 0.17 mmol). The mixture was stirred for 30 minutes, and benzyl bromide (64, 0.05 mmol) was added. The mixture was stirred another 90 minutes, and was quenched with water, and left for 12 hours. The mixture was extracted with ethyl acetate, and the organic layer was washed with water and brine, and dried over sodium sulfate. Concentration and purification by flash column chromatography (hexanes/EtOAc) gave (S)-2-(2-(benzyloxy)-5-(4-chlorophenyl)-7-methylquinolin-6-yl)-2-tert-butoxyethanol (3.1 mg). LCMS-ESI+ (m/z): [M-FH]+ calcd for C29H30ClNO3: 476.2. Found: 476.1. (S)-1-Benzyl-6-(1-tert-butoxy-2-hydroxyethyl)-5-(4-chlorophenyl)-7-methylquinolin-2(1H)-one was also isolated 6.1 mg LCMS-ESI+ (m/z): [M+H]+ calcd for LCMS-ESI+ (m/z): [M+H]+ calcd for C29H31ClNO3: 476.2. Found: 476.2.

Provenance & Evidence