反应详情

Compound 61 was prepared using the synthetic sequence in a manner analogous to the method described for the conversion of compound 21 to compound 23 and illustrated in Scheme 2. NMR (300 MHz, CDCl3): δ 8.8 (br s, 1H), 8.45 (m, 1H), 8.1 (m, 1H), 7.75 (m, 2H), 7.4-7.2 (m, 7H), 7.05 (m, 1H), 5.9 (s, 1H), 5.0 (d, J=15 Hz, 1H), 4.4 (d, J=15 Hz, 1H), 3.65 (d, J=19 Hz, 1H), 3.5 (d, J=19 Hz, 1H), 2.4 (s, 3H). MS: m/z (MNa+) 410.