反应详情

Prepared analogously to Compound 27D replacing 5-fluoro-1H-benzo[d][1,3]oxazine-2,4-dione (Compound 27E) with 5-methoxy-1H-benzo[d][1,3]oxazine-2,4-dione (Compound 30E). 1H NMR (CDCl3, 500 MHz) δ 2.98 (d, J=4.5 Hz, 3H), 3.77 (s, 3H), 5.82 (br.s, 2H), 6.74 (d, J=9.0 Hz, 1H), 7.27 (d, J=9.0 Hz, 1H), 7.58 (br.s, 1H).