反应详情

温度

190 °C

A mixture of the product of Example 354 (38 mg, 0.086 mmol) and 3-aminobenzoic acid (13 mg, 0.094 mmol) in polyphosphoric acid (1 mL)was heated to 190° C. for 1 hour. The solution was cooled to 25° C., triturated with water and a 10% solution of sodium carbonate. The solid was filtered, dried, and purified by flash column, eluting with 2% methanol in dichloromethane to yield the title compound (15 mg, 38%). The sodium salt was made by the procedure of Example 1D. MS (ESI−) m/z 543 (M−H)−. 1H NMR (300 MHz, DMSO-d6) δ 1.04 (d, J=6.62 Hz, 6 H) 1.86 (m, 1 H) 2.56 (m, 2 H) 5.53 (s, 2 H) 5.96 (t, J=7.35 Hz, 1 H) 6.82 (ddd, J=8.09, 2.21, 1.10 Hz, 1 H) 7.08 (td, J=7.35, 1.47 Hz, 1 H) 7.27 (m, 2 H) 7.36 (dt, J=7.72, 1.29 Hz, 1 H) 7.57 (m, 3 H) 7.96 (d, J=8.82 Hz, 1 H) 8.10 (dd, J=8.09, 1.47 Hz, 1 H) 16.51 (s, 1 H).

1. temperatureThe solution was cooled to 25° C.
2. customtriturated with water
3. filtrationThe solid was filtered
4. customdried
5. custompurified by flash column
6. washeluting with 2% methanol in dichloromethane