反应详情

温度

80 °C

To a solution of (R)-5-(3-(1-amino-2,3-dihydro-1H-inden-4-yl)-1,2,4-oxadiazol-5-yl)-2-isopropoxybenzonitrile 49 (18 mg, 0.05 mmol) in DMA (0.5 mL) was added DIEA (87 μL, 0.5 mmol) and methylvinylsulfone (53 mg, 0.5 mmol). The reaction was heated to 80° C. for 24 h. The crude reaction mixture was purified by preparative HPLC to give (R)-2-isopropoxy-5-(3-(1-((2-(methylsulfonyl)ethyl)amino)-2,3-dihydro-1H-inden-4-yl)-1,2,4-oxadiazol-5-yl)benzonitrile 125. LCMS-ESI (m/z) calculated for C24H26N4O4S: 466.2. found 467.1 [M+H]+, tR=2.58 min. 1H NMR (400 MHz, CDCl3) δ 8.41 (d, J=2.1 Hz, 1H), 8.32 (dd, J=8.9, 2.2 Hz, 1H), 8.07 (d, J=7.6 Hz, 1H), 7.47 (d, J=7.5 Hz, 1H), 7.37 (t, J=7.6 Hz, 1H), 7.10 (d, J=9.0 Hz, 1H), 4.77 (hept, J=6.1 Hz, 1H), 4.33 (t, J=6.7 Hz, 1H), 3.44 (ddd, J=17.5, 8.7, 4.8 Hz, 1H), 3.36-3.10 (m, 5H), 3.03 (s, 3H), 2.57-2.43 (m, 1H), 1.98-1.83 (m, 1H), 1.46 (d, J=6.1 Hz, 6H). 13C NMR (101 MHz, CDCl3) δ 173.04, 168.94, 162.76, 146.05, 143.49, 134.11, 133.92, 128.24, 127.03, 126.83, 123.28, 116.84, 115.33, 113.58, 103.88, 72.76, 63.05, 55.41, 42.42, 40.86, 32.98, 31.86, 21.75. Compound 126 was made in an analogous fashion.

1. customThe crude reaction mixture
2. customwas purified by preparative HPLC