反应详情

When the product of Step B and 4-carbaldehyde-boronic acid were substituted for 4-bromobenzaldehyde and 5-(hydroxymethyl)thiophen-2-ylboronic acid, respectively, in Example 22, Step A, the similar process afforded the title compound in 65% yield, as creamy gum. 1H-NMR (CDCl3) 10.03 (s, 1H); 7.92 (d, 2H, J=7.97 Hz); 7.56 (d, 2H, J=7.95 Hz); 7.38 (d, 2H, J=8.29 Hz); 6.86 (t, 2H, J=8.46 Hz); 6.67-6.62 (m, 2H); 4.38 (s, 2H); 4.17-4.12 (m, 1H); 1.2 (d, 6H, J=6.96 Hz).