反应详情

When the product of Step B was substituted for propyl 3,4-dipropoxybenzoate in Example 43, Step B, the identical process afforded the title compound in 94%, as creamy solid. 1H-NMR (CDCl3) 1.04-1.15 (m, 3H); 1.83-1.94 (m, 2H); 3.99-4.08 (m, 2H); 6.8 (d, 1H, J=6 Hz); 8.04 (dd, 1H, J=3, 6 Hz); 8.5 (d, 1H, J=3 Hz).