反应详情

16.5 ml (26.5 mmol) of a 1.6N solution of n-butyllithium in hexane were added dropwise to a solution of 5.00 g (26.5 mmol) of 4-bromo-3-fluorotoluene in 40 ml of THF at −78° C., and the mixture was stirred for 0.5 h. Then, at −78° C., a solution of 2.72 g (17.6 mmol) of the compound from Example 73A in 10 ml of THF was added, and the mixture was allowed to warm to RT and was stirred at RT for 2 h. Water was added, the mixture was concentrated, and the crude product was purified by preparative HPLC (RP18 column; mobile phase: acetonitrile/water gradient with addition of 0.1% formic acid). 300 mg (9% of theory) of the title compound were obtained.

1. stirringwas stirred at RT for 2 h
2. concentrationthe mixture was concentrated
3. customthe crude product was purified by preparative HPLC (RP18 column; mobile phase: acetonitrile/water gradient with addition of 0.1% formic acid)