反应详情

温度

170 °C

A mixture of 3-amino-6-(1-ethylsulfonyl-3,6-dihydro-2H-pyridin-4-yl)pyrazine-2-carboxylic acid (100 mg, 0.320 mmol), 4-methylbenzene-1,2-diamine (39.12 mg, 0.320 mmol), diethoxyphosphorylformonitrile (47.83 uL, 0.320 mmol) and triethylamine (44.63 uL, 0.320 mmol) in DME (1 mL) were heated in a microwave at 170° C. for 90 min. After this time the reaction mixture was filtered and purified by reverse phase preparative HPLC [Waters Sunfire C18, 10 uM, 100A column, gradient 10%-95% B (solvent A: 0.05% TFA in water, solvent B: CH3CN) over 16 minutes at 25 mL/min]. The fractions were collected, and freeze-dried to give the title compound (46.8 mg, 21% Yield). 1H NMR (400.0 MHz, DMSO) d 8.34 (s, 1H), 7.57 (d, J=8.1 Hz, 1H), 7.46 (s, 1H), 7.11 (d, J=8.0 Hz, 1H), 6.78 (s, 1H), 4.00 (d, J=2.8 Hz, 2H), 3.50 (t, J=5.7 Hz, 2H), 3.16 (q, J=7.4 Hz, 2H), 2.78 (s, 2H), 2.46 (s, 3H) and 1.25 (t, J=7.4 Hz, 3H) ppm; MS (ES+) 399

1. filtrationAfter this time the reaction mixture was filtered
2. custompurified by reverse phase preparative HPLC [Waters Sunfire C18, 10 uM, 100A column, gradient 10%-95% B (solvent A: 0.05% TFA in water, solvent B: CH3CN) over 16 minutes at 25 mL/min]
3. customThe fractions were collected
4. customfreeze-dried