Water → N-(3-Fluoro-4-pyridinyl)-N-(3-methyl-1H-indol-1-yl)glycine ethyl ester

HRID 440431Notes

Reaction equation

[H-].[Na+].[F:3][C:4]1[CH:5]=[N:6][CH:7]=[CH:8][C:9]=1[NH:10][N:11]1[C:19]2[C:14](=[CH:15][CH:16]=[CH:17][CH:18]=2)[C:13]([CH3:20])=[CH:12]1.Cl[CH2:22][C:23]([O:25][CH2:26][CH3:27])=[O:24].O>CN(C)C=O>[CH2:26]([O:25][C:23](=[O:24])[CH2:22][N:10]([C:9]1[CH:8]=[CH:7][N:6]=[CH:5][C:4]=1[F:3])[N:11]1[C:19]2[C:14](=[CH:15][CH:16]=[CH:17][CH:18]=2)[C:13]([CH3:20])=[CH:12]1)[CH3:27]

Participants

Conditions

Temperature: -20 °C

Procedure

To a suspension of NaH (60% in oil, 1.48 g) in 10 ml of dimethylformamide (DMF) at ice bath temperature was added dropwise a solution of N-(3-fluoro-4-pyridinyl)-3-methyl-1H-indol-1-amine (8.5 g) in 40 ml of DMF. when addition was complete, the mixture was stirred for 15 minutes at ice bath temperature, and then cooled to -20° C. Ethyl chloroacetate (3.95 ml) was added dropwise in 10 ml of DMF. The mixture was stirred at -20° C. for one hour. The mixture was then poured into water and extracted with ethyl acetate. The organic layer was washed with water and dried (sat. NaCl, anhy. MgSO4). After filtering, the solvent was evaporated to yield an oil (12.2 g) which was eluted with 10% ethyl acetate/DCM on a silica gel column via HPLC. The desired fractions were evaporated to yield 6.9 g of a solid, m.p. 105°-108° C.

Workup

additionwhen addition
stirringThe mixture was stirred at -20° C. for one hour
extractionextracted with ethyl acetate
washThe organic layer was washed with water
dry with materialdried (sat. NaCl
filtrationAfter filtering
customthe solvent was evaporated

Sources & evidence

ORD record: ord-cfc0b6b532734aa9b257e44ebadd2bab
Source dataset: uspto-grants-1996_05
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US05519131

Reaction notes

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