Methanol → HCID 58443303, compound

5-((tert-Butyldimethylsilyloxy)methyl)-2-fluoro-3-(6-(2,2,2-trifluoroethoxy)pyridin-3-yl)pyridine (0.204 g, 0.490 mmol) was placed into a microwave vial with MeOH (1.0 mL), and NaOMe (0.132 g, 2.45 mmol). The vial was sealed and irradiated at 130° C. for 7 min, worked up by adding H2O (5 mL) and EtOAc (5 mL). The layers were separated and the aqueous layer was washed with EtOAc (3×5 mL). The combined organic layers were then washed with 1M sodium phosphate buffer (pH 5.5) (2×5 mL), dried (MgSO4), filtered, and concentrated. This residue was then dissolved in 5 mL of tetra-butylammonium fluoride (1M in THF) and stirred at rt overnight. The reaction was then quenched by adding water (5 mL) and extracting with EtOAc (3×5 mL). The combined organic layers were then washed with brine (1×5 mL), dried (MgSO4), filtered, and concentrated. The resulting crude oil was then placed into a flame dried flask and to this was added N-methylmorpholine N-oxide (0.169 g, 1.44 mmol), 4 Å molecular sieves (10 mg), and CH2Cl2 (1.0 mL). Tetrapropylammonium perruthenate (8.43 mg, 0.024 mmol) was then added, and the suspension was stirred at rt overnight. The reaction mixture was then worked up by filtering through Celite® and concentrating the filtrate to give the title compound.

1. customThe vial was sealed
2. customirradiated at 130° C. for 7 min
3. customThe layers were separated
4. washthe aqueous layer was washed with EtOAc (3×5 mL)
5. washThe combined organic layers were then washed with 1M sodium phosphate buffer (pH 5.5) (2×5 mL)
6. dry with materialdried (MgSO4)
7. filtrationfiltered
8. concentrationconcentrated
9. dissolutionThis residue was then dissolved in 5 mL of tetra-butylammonium fluoride (1M in THF)
10. customThe reaction was then quenched
11. additionby adding water (5 mL)
12. extractionextracting with EtOAc (3×5 mL)
13. washThe combined organic layers were then washed with brine (1×5 mL)
14. dry with materialdried (MgSO4)
15. filtrationfiltered
16. concentrationconcentrated
17. customdried flask
18. stirringthe suspension was stirred at rt overnight
19. filtrationby filtering through Celite®
20. concentrationconcentrating the filtrate

ORD record

ord-ab8fdf56d9694d129bbcec9cd89ccf14

Source dataset

uspto-grants-2014_07

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US08791147B2