Cesium carbonate → (2S,4R)-(4-{4-[Acetyl-(4-chloro-phenyl)-amino]-2-methyl-3,4-dihydro-2H-quinoline-1-carbonyl}-phenoxy)-fluoro-acetic acid ethyl ester

HRID 1785973Notes

Reaction equation

HRID 1785973 reaction equation
[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([N:8]([C@H:12]2[C:21]3[C:16](=[CH:17][CH:18]=[CH:19][CH:20]=3)[N:15]([C:22](=[O:30])[C:23]3[CH:28]=[CH:27][C:26]([OH:29])=[CH:25][CH:24]=3)[C@@H:14]([CH3:31])[CH2:13]2)[C:9](=[O:11])[CH3:10])=[CH:4][CH:3]=1.C([O-])([O-])=O.[Cs+].[Cs+].[CH2:38]([O:40][C:41](=[O:45])[CH:42](Br)[F:43])[CH3:39]>CN(C=O)C>[CH2:38]([O:40][C:41](=[O:45])[C@@H:42]([O:29][C:26]1[CH:25]=[CH:24][C:23]([C:22]([N:15]2[C:16]3[C:21](=[CH:20][CH:19]=[CH:18][CH:17]=3)[C@H:12]([N:8]([C:9](=[O:11])[CH3:10])[C:5]3[CH:4]=[CH:3][C:2]([Cl:1])=[CH:7][CH:6]=3)[CH2:13][CH:14]2[CH3:31])=[O:30])=[CH:28][CH:27]=1)[F:43])[CH3:39]

Participants

5

Reactant 3

HCID 10796Cesium carbonateHCID 2733407Acetic acid, 2-bromo-2-fluoro-, ethyl esterHCID 58859774N-(4-chlorophenyl)-N-[(2S,4R)-1-(4-hydroxybenzoyl)-2-methyl-1,2,3,4-tetrahydro-quinolin-4-yl]acetamide

Product 1

HCID 86601699(2S,4R)-(4-{4-[Acetyl-(4-chloro-phenyl)-amino]-2-methyl-3,4-dihydro-2H-quinoline-1-carbonyl}-phenoxy)-fluoro-acetic acid ethyl ester

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

(2S,4R)-N-(4-Chloro-phenyl)-N-[1-(4-hydroxy-benzoyl)-2-methyl-1,2,3,4-tetrahydro-quinolin-4-yl]-acetamide (202 mg, 0.46 mmol) was dissolved in DMF (2 mL) at room temperature. Cs2CO3 (760 mg, 2.33 mmol) was added followed by bromo-fluoro-acetic acid ethyl ester (0.070 mL, 0.583 mmol) and the reaction was allowed to stir overnight. The mixture was partitioned between methylene chloride and water; the organic layer was dried over Na2SO4, filtered and concentrated. The crude residue was purified by silica gel chromatography (2/1 hexanes/ethyl acetate) to afford the product.

Workup

  1. customThe mixture was partitioned between methylene chloride and water
  2. dry with materialthe organic layer was dried over Na2SO4
  3. filtrationfiltered
  4. concentrationconcentrated
  5. customThe crude residue was purified by silica gel chromatography (2/1 hexanes/ethyl acetate)
  6. customto afford the product

Sources & evidence

ORD record
ord-9dd67dbf49b0479e84dc553da0a6f407
Source dataset
uspto-grants-2009_03
Patent number
US07504508B2

Reaction notes

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