反应详情

温度

100 °C

A flask containing 2-amino-6-bromo-8-(trans-4-hydroxycyclohexyl)-4-methylpyrido[2,3-d]pyrimidin-7(8H)-one (105 mg, 0.297 mmol), potassium carbonate (123 mg, 0.892 mmol), and 2-methoxy-5-pyridine boronic acid (52 mg, 0.34 mmol) was evacuated and back-filled with nitrogen (2×). A solution of 5:1 dimethylformade:water (1.8 mL) was bubbled with argon for 15 min then added to the flask followed by bis(tripehnylphosphine) palladium (II) chloride (10 mg, 0.015 mmol). The flask was fitted with a cold finger, evacuated and back filled with nitrogen (2×) then heated to 100° C. for 4 hr. The mixture was cooled overnight, diluted with methanol and chloroform then filtered through a glass fiber filter to filter out palladium. The filtrate was concentrated and the residue was purified by flash chromatography eluting with chloroform/7 N ammonia in methanol (0.5-6%) to afford the title compound (80, 71%).

1. customwas evacuated
2. additionback-filled with nitrogen (2×)
3. customA solution of 5:1 dimethylformade:water (1.8 mL) was bubbled with argon for 15 min
4. additionthen added to the flask
5. customThe flask was fitted with a cold finger
6. customevacuated
7. additionback filled with nitrogen (2×)
8. temperatureThe mixture was cooled overnight
9. additiondiluted with methanol and chloroform
10. filtrationthen filtered through a glass fiber
11. filtrationfilter
12. filtrationto filter out palladium
13. concentrationThe filtrate was concentrated
14. customthe residue was purified by flash chromatography
15. washeluting with chloroform/7 N ammonia in methanol (0.5-6%)