反应详情

Compound 88B was prepared in a similar manner to the synthesis of compound 31F by substituting compound 31E with compound 88A: 1H NMR (DMSO-d6): δ 8.84 (s, 1H), 6.72-6.75 (m, 2H), 6.64-6.67 (m, 2H), 3.96 (d, J=5.83 Hz, 2H), 3.55-3.58 (m 4H), 2.63 (d, J=5.83 Hz, 2H), 2.42-2.46 (m, 4H). ESI (+)/MS: 224 (M+H)+.