Water → 2,4-difluoro-3-[hydroxy-(5-pyridin-3-yl-1H-pyrrolo[2,3-b]pyridin-3-yl)-methyl]-phenol

To carbonic acid tert-butyl ester 2,4-difluoro-3-formyl-phenyl ester (39, 0.405 g, 15.7 mmol) in methanol (36 mL), under an atmosphere of nitrogen, was added 5-pyridin-3-yl-1H-pyrrolo[2,3-b]pyridine (89, 288.0 mg, 14.8 mmol, prepared as described in Example 17) and potassium hydroxide (145.0 mg, 25.9 mmol). The reaction was stirred at room temperature overnight. Then, the reaction was poured into water, and extracted with ethyl acetate. The organic layer was washed with brine dried over anhydrous sodium sulfate and concentrated. The mixture was purified by silica gel column chromatography eluting with 4% methanol in methylene chloride to provide two separate compounds, a colorless oil (P-0009, 0.23 g, 44.1%, MS(ESI) [M+H+]+=354.1), and a colorless oil (P-0042, 0.050 g, 9.2%, MS(ESI) [M+H+]+=367.1).

1. extractionextracted with ethyl acetate
2. washThe organic layer was washed with brine
3. dry with materialdried over anhydrous sodium sulfate
4. concentrationconcentrated
5. customThe mixture was purified by silica gel column chromatography
6. washeluting with 4% methanol in methylene chloride
7. customto provide two
8. customseparate compounds

ORD record

ord-55d05b37198c4327a4c7c755386511ae

Source dataset

uspto-grants-2013_04

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US08415469B2