Potassium Carbonate → methyl 2-(3-((4-(((tert-butoxycarbonyl)(methyl)amino)methyl)-2-(2-fluorophenyl)-1H-pyrrol-1-yl)sulfonyl)phenoxy)acetate

Temperatur

50 °C

tert-Butyl ((5-(2-fluorophenyl)-1-((3-hydroxyphenyl)sulfonyl)-1H-pyrrol-3-yl)methyl)(methyl)carbamate 1h (100 mg, 0.22 mmol), methyl bromoacetate (40 mg, 0.26 mmol) and potassium carbonate (45 mg, 0.33 mmol) were added to 5 mL of acetonitrile, then the reaction solution was heated up to 50° C. and stirred for 16 h. The reaction solution was concentrated under reduced pressure. 50 mL of water were added, and the reaction solution was extracted with ethyl acetate (50 mL×3). The organic phases were combined, dried over anhydrous sodium sulfate, filtered, and the filtrate was concentrated under reduced pressure to obtain the title product methyl 2-(3-((4-(((tert-butoxycarbonyl)(methyl)amino)methyl)-2-(2-fluorophenyl)-1H-pyrrol-1-yl)sulfonyl)phenoxy)acetate 1i (110 mg, a yellow oil), which was used directly in the next step.

1. concentrationThe reaction solution was concentrated under reduced pressure
2. addition50 mL of water were added
3. extractionthe reaction solution was extracted with ethyl acetate (50 mL×3)
4. dry with materialdried over anhydrous sodium sulfate
5. filtrationfiltered
6. concentrationthe filtrate was concentrated under reduced pressure

ORD-Eintrag

ord-4394e64bf65a42b0ba6fa6e3c2a793e6

Quelldatensatz

uspto-grants-2016_07

DOI

10.6084/m9.figshare.5104873.v1

Patentnummer

US09388133B2