反应详情

温度

15 °C

To a solution of 3-Iodo-1-triisopropylsilanyl-1H-pyrrolo[2,3-b]pyridine (96, 0.644 g, 1.61 mmol) in tetrahydrofuran (10.0 mL) at −40° C. under nitrogen, isopropylmagnesium chloride (2.0 M in tetrahydrofuran, 0.80 mL) was added slowly. The reaction was allowed to warm to 15° C. over 100 minutes, then cooled to −40° C., followed by adding [2,6-difluoro-3-(propane-1-sulfonylamino)-benzyl]-(5-formyl-pyridin-2-yl)-carbamic acid tert-butyl ester (560, 0.100 g, 0.21 mmol, prepared as described in Example 60, Scheme 175) in tetrahydrofuran (2.0 mL). The reaction was allowed to warm to 5° C. over 2 hours, then poured into aqueous ammonium chloride, and extracted with ethyl acetate. The organic layer was dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated and purified by silica gel column chromatography eluting with 20% to 100% ethyl acetate in hexane to give a yellow solid (574, 75 mg, 47%). MS (ESI) [M+H+]+=744.7.

1. temperaturecooled to −40° C.
2. temperatureto warm to 5° C. over 2 hours
3. extractionextracted with ethyl acetate
4. dry with materialThe organic layer was dried over anhydrous sodium sulfate
5. filtrationfiltered
6. concentrationThe filtrate was concentrated
7. custompurified by silica gel column chromatography
8. washeluting with 20% to 100% ethyl acetate in hexane
9. customto give a yellow solid (574, 75 mg, 47%)