反应详情

Compound 43D was converted to the title compound 44D, using the methodology described for the conversion of 43A to 44A (see Scheme 9). Yield: 86% (oil). 1H-NMR (400 MHz, CDCl3): δ 9.25 (d, J=2 Hz, 1H), 8.6 (dd, J=5 Hz, 2 Hz, 1H), 8.35 (dt, J=8 Hz, 2 Hz, 1H), 7.74 (s, 1H), 7.40-7.17 (m, 6H), 2.77 ((t, J=7 Hz, 2H), 2.44 ((t, J=7 Hz, 2H), 1.99-1.89 (m, 2H).