Potassium Carbonate → Methyl 2-(2-(3-(tert-butylamino)-2-methylquinoxalin-5-yl)-2-oxoethyl)-4,4-dimethoxy-3-oxopentanoate

Participants

Reaction Steps

A mixture of methyl 4,4-dimethoxy-3-oxovalerate (Sigma Aldrich, 0.127 ml, 0.744 mmol), K2CO3 (EMD Biosciences, 0.135 ml, 2.231 mmol), 2-bromo-1-(3-(tert-butylamino)-2-methylquinoxalin-5-yl)ethanone (606) (0.25 g, 0.744 mmol) in DMF (2.97 mL) was stirred at RT for 2 d. Reaction mixture was diluted with DCM and washed with alternating water and brine washes (2×) to remove DMF. The organic layer was concentrated and advanced to the next step. m/z (ESI, +ve) 446.1 (M+H).

Provenance & Evidence