反应详情

The reaction of the title compound of Example 20 (200 mg, 0.49 mmol) with ethyl magnesium bromide (1 M in diethyl ether, 7.5 ml, 7.5 mmol) in tetrahydrofuran (2 ml) using the method described in Example 22 provided the title compound (44 mg, 22% yield). 1H NMR (CDCl3) 7.80 (m, 1H), 7.48 (d, J=8.8 Hz, 2H), 7.38 (d, J=8.8 Hz, 2H), 7.09-7.12 (m, 2H), 2.79 (q, J=7.4 Hz, 4H), 1.13 (t, J=7.0 Hz, 3H).