Acetyl chloride → N-(4-chloro-2-fluorophenyl)-N-[(2S,4R)-1-(4-methoxybenzoyl)-2-methyl-1,2,3,4-tetrahydroquinolin-4-yl]acetamide

HRID 1785939Notes

Reaction equation

HRID 1785939 reaction equation
[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([NH:8][C@H:9]2[C:18]3[C:13](=[CH:14][CH:15]=[CH:16][CH:17]=3)[N:12]([C:19](=[O:28])[C:20]3[CH:25]=[CH:24][C:23]([O:26][CH3:27])=[CH:22][CH:21]=3)[C@@H:11]([CH3:29])[CH2:10]2)=[C:4]([F:30])[CH:3]=1.C(N(C(C)C)CC)(C)C.[C:40](Cl)(=[O:42])[CH3:41]>>[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([N:8]([C@H:9]2[C:18]3[C:13](=[CH:14][CH:15]=[CH:16][CH:17]=3)[N:12]([C:19](=[O:28])[C:20]3[CH:21]=[CH:22][C:23]([O:26][CH3:27])=[CH:24][CH:25]=3)[C@@H:11]([CH3:29])[CH2:10]2)[C:40](=[O:42])[CH3:41])=[C:4]([F:30])[CH:3]=1

Participants

4

Reactant 3

HCID 6367Acetyl chlorideHCID 81531DiisopropylethylamineHCID 68921323(2S,4R)-N-(4-chloro-2-fluorophenyl)-1-(4-methoxybenzoyl)-2-methyl-1,2,3,4-tetrahydroquinolin-4-amine

Product 1

HCID 11590836N-(4-chloro-2-fluorophenyl)-N-[(2S,4R)-1-(4-methoxybenzoyl)-2-methyl-1,2,3,4-tetrahydroquinolin-4-yl]acetamideYield 92%

Procedure

To a solution of (2S,4R)-N-(4-chloro-2-fluorophenyl)-1-(4-methoxybenzoyl)-2-methyl-1,2,3,4-tetrahydroquinolin-4-amine (60 mg, 0.14 mmol, 1 equ.) in acetyl chloride (0.5 mL) was added diisopropylethylamine (25 uL, 0.14 mmol, 1 equ.). The mixture was stirred at room temperature for 16 h. The mixture was concentrated under reduced pressure, dissolved in ethyl acetate, washed with sat. aqueous sodium bicarbonate, brine and dried over magnesium sulfate, filtered, and concentrated under reduced pressure. The residue was purified by silica gel chromatography (methylene chloride/methanol 99.5/0.5) to afford pure N-(4-chloro-2-fluorophenyl)-N-[(2S,4R)-1-(4-methoxybenzoyl)-2-methyl-1,2,3,4-tetrahydroquinolin-4-yl]acetamide (140 mg, 92%).

Workup

  1. concentrationThe mixture was concentrated under reduced pressure
  2. dissolutiondissolved in ethyl acetate
  3. washwashed with sat. aqueous sodium bicarbonate, brine
  4. dry with materialdried over magnesium sulfate
  5. filtrationfiltered
  6. concentrationconcentrated under reduced pressure
  7. customThe residue was purified by silica gel chromatography (methylene chloride/methanol 99.5/0.5)

Sources & evidence

ORD record
ord-78633439ddf642a3a95eb0b43b1b09d7
Source dataset
uspto-grants-2009_03
Patent number
US07504508B2

Reaction notes

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