5-Chloro-1-naphthoic acid → 5-chloro-N-{(1RS,2SR)-2-(3-chlorophenyl)-1-[4-(1,1-difluoro-2,2-dimethylpropyl)benzyl]-2-hydroxyethyl}-1-naphthamide

HRID 1610776Notes

Reaction equation

HRID 1610776 reaction equation
[Cl:1][C:2]1[CH:11]=[CH:10][CH:9]=[C:8]2[C:3]=1[CH:4]=[CH:5][CH:6]=[C:7]2[C:12]([OH:14])=O.Cl.C(N=C=NCCCN(C)C)C.O.ON1C2C=CC=CC=2N=N1.[NH2:38][CH:39]([CH2:49][C:50]1[CH:55]=[CH:54][C:53]([C:56]([F:62])([F:61])[C:57]([CH3:60])([CH3:59])[CH3:58])=[CH:52][CH:51]=1)[CH:40]([C:42]1[CH:47]=[CH:46][CH:45]=[C:44]([Cl:48])[CH:43]=1)[OH:41]>CN(C)C=O.C(OCC)(=O)C>[Cl:1][C:2]1[CH:11]=[CH:10][CH:9]=[C:8]2[C:3]=1[CH:4]=[CH:5][CH:6]=[C:7]2[C:12]([NH:38][CH:39]([CH2:49][C:50]1[CH:51]=[CH:52][C:53]([C:56]([F:62])([F:61])[C:57]([CH3:58])([CH3:59])[CH3:60])=[CH:54][CH:55]=1)[CH:40]([C:42]1[CH:47]=[CH:46][CH:45]=[C:44]([Cl:48])[CH:43]=1)[OH:41])=[O:14]

Participants

7

Reactant 4

HCID 9370575-Chloro-1-naphthoic acidHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 27960291-Hydroxybenzotriazole hydrateHCID 22261485HCID 22261485, compound

Product 1

HCID 222615455-chloro-N-{(1RS,2SR)-2-(3-chlorophenyl)-1-[4-(1,1-difluoro-2,2-dimethylpropyl)benzyl]-2-hydroxyethyl}-1-naphthamideYield 42%

Reagents, catalysts & solvents 2

HCID 6228DimethylformamideSolventHCID 8857Ethyl AcetateSolvent

Procedure

To a solution of 5-chloronaphthalene-1-carboxylic acid (238 mg, 1.15 mmol) in N,N-dimethylformamide (5 ml) were added 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide hydrochloride (220 mg, 1.15 mmol) and 1-hydroxybenzotriazole monohydrate (176 mg, 1.15 mmol), and (1RS,2SR)-2-amino-1-(3-chlorophenyl)-3-[4-(1,1-difluoro-2,2-dimethylpropyl)phenyl]-1-propanol (0.40 g, 1.09 mmol) was finally added. The mixture was stirred overnight at room temperature. The mixture was diluted with ethyl acetate, washed with saturated aqueous sodium hydrogen carbonate solution, water and saturated brine, dried over anhydrous magnesium sulfate, and filtered using a glass filter filled with silica gel. The filtrate was washed with ethyl acetate and concentrated under reduced pressure. The residue was purified by recrystallization (hexane-ethyl acetate) to give 5-chloro-N-{(1RS,2SR)-2-(3-chlorophenyl)-1-[4-(1,1-difluoro-2,2-dimethylpropyl)benzyl]-2-hydroxyethyl}-1-naphthamide (252 mg, 42%) as colorless crystals.

Workup

  1. additionwas finally added
  2. washwashed with saturated aqueous sodium hydrogen carbonate solution, water and saturated brine
  3. dry with materialdried over anhydrous magnesium sulfate
  4. filtrationfiltered
  5. filtrationfilter
  6. additionfilled with silica gel
  7. washThe filtrate was washed with ethyl acetate
  8. concentrationconcentrated under reduced pressure
  9. customThe residue was purified by recrystallization (hexane-ethyl acetate)

Sources & evidence

ORD record
ord-b00e09b66b0c4afca305163f6736b73c
Source dataset
uspto-grants-2006_01
Patent number
US06982348B2

Reaction notes

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