Potassium Iodide → N-(2-nitrobenzenesulfonyl)-N-[[2-(3,4,5-trimethoxyphenyl)pyridin-4-yl]methyl]glycine methyl ester

N-(2-Nitrobenzenesulfonyl)glycine methyl ester (5.60 g) was dissolved in acetonitrile (100 mL), and to the solution potassium carbonate (3.10 g) and potassium iodide (2.29 g) were added. To the mixture, 4-chloromethyl-2-(3,4,5-trimethoxyphenyl)pyridine (6.00 g) was then added, and the resultant mixture was stirred at 80° C. for 1 hour. The reaction mixture was concentrated under reduced pressure, ethyl acetate was added to the residue, and the resultant mixture was washed with a saturated aqueous solution of sodium hydrogencarbonate, water and saturated brine, dried over anhydrous sodium sulfate and concentrated under reduced pressure. The residue was purified by column chromatography on silica gel (chloroform:methanol=50:1) to obtain the title compound.

1. concentrationThe reaction mixture was concentrated under reduced pressure, ethyl acetate
2. additionwas added to the residue
3. washthe resultant mixture was washed with a saturated aqueous solution of sodium hydrogencarbonate, water and saturated brine
4. dry with materialdried over anhydrous sodium sulfate
5. concentrationconcentrated under reduced pressure
6. customThe residue was purified by column chromatography on silica gel (chloroform:methanol=50:1)

ORD-Eintrag

ord-b4f4262b50524a978ae360b261332372

Quelldatensatz

uspto-grants-2002_08

DOI

10.6084/m9.figshare.5104873.v1

Patentnummer

US06432957B1