反应详情

The procedure described in Example 9 was repeated, except that methyl triphenylphosphonium bromide (2.35 g; 6.6 mmol), n-butyl lithium in n-hexane (1.56 M: 4.2 ml; 6.6 mmol), and Compound 43 (1.3 g; 4.4 mmol) were used, to thereby yield 950 mg of the target compound (yield: 73.6%).