反应详情

Tetrahydrofuran (3 mL) and a 5 N aqueous sodium hydroxide solution (36.0 μL, 0.18 mmol) were added to 4-(5-(2-amino-pyridin-3-yl)-isoxazol-3-ylmethyl)-phenol (48.2 mg, 0.18 mmol) described in Manufacturing Example 5-1-1, which was dissolved by irradiating ultrasonic wave for 1 minute. The reaction mixture was then concentrated under a reduced pressure to obtain a white solid. This solid and 2-chloromethyl-6-fluoro-pyridine (63.2 mg, 0.43 mmol) described in Manufacturing Example 45-1-1 were added to N,N-dimethylformamide (3 mL), which was stirred for 3 hours at room temperature. This mixture was partitioned into water and ethyl acetate. This organic layer was separated, washed with water and saturated aqueous sodium chloride, dried over anhydrous magnesium sulfate, and filtered. The filtrate was concentrated under a reduced pressure, and the residue was purified by NH silica gel column chromatography (heptane:ethyl acetate=1:1) to obtain the title compound (47.9 mg, 59%).

1. dissolutionwas dissolved
2. customby irradiating ultrasonic wave for 1 minute
3. concentrationThe reaction mixture was then concentrated under a reduced pressure
4. customto obtain a white solid
5. customThis mixture was partitioned into water and ethyl acetate
6. customThis organic layer was separated
7. washwashed with water and saturated aqueous sodium chloride
8. dry with materialdried over anhydrous magnesium sulfate
9. filtrationfiltered
10. concentrationThe filtrate was concentrated under a reduced pressure
11. customthe residue was purified by NH silica gel column chromatography (heptane:ethyl acetate=1:1)