Water → HCID 57930233, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of 5-bromo-2-pyrazinol (and tautomers thereof) (0.2 g, 1.14 mmol), 1-methylethyl 4-{[(methylsulfonyl)oxy]methyl}-1-piperidinecarboxylate (prepared as in Example 131, Step 4, 0.51 g, 1.71 mmol) and K2CO3 (0.32 g, 2.29 mmol) in DMF (12 mL) was stirred at ambient temperature for 30 min, then heated at 70° C. overnight. The mixture was cooled to ambient temperature and poured into water, and then extracted with EtOAc (60 mL×2). The combined organic extract was washed with water, brine and dried over Na2SO4, filtered, and the filtrate was concentrated to give crude 1-methylethyl 4-{[(5-bromo-2-pyrazinyl)oxy]methyl}-1-piperidinecarboxylate a brown oil, which was used without further purification.

Provenance & Evidence