4-Fluoro-1-naphthoic acid → 4-fluoro-N-{(1RS,2SR)-2-(3-chlorophenyl)-2-hydroxy-1-[3-(1,1,2,2-tetrafluoroethoxy)benzyl]ethyl}-1-naphthamide

HRID 1610608Notes

Reaction equation

HRID 1610608 reaction equation
[NH2:1][CH:2]([CH2:12][C:13]1[CH:18]=[CH:17][CH:16]=[C:15]([O:19][C:20]([F:25])([F:24])[CH:21]([F:23])[F:22])[CH:14]=1)[CH:3]([C:5]1[CH:10]=[CH:9][CH:8]=[C:7]([Cl:11])[CH:6]=1)[OH:4].[F:26][C:27]1[C:36]2[C:31](=[CH:32][CH:33]=[CH:34][CH:35]=2)[C:30]([C:37](O)=[O:38])=[CH:29][CH:28]=1.Cl.C(N=C=NCCCN(C)C)C.O.ON1C2C=CC=CC=2N=N1>C(#N)C.O>[F:26][C:27]1[C:36]2[C:31](=[CH:32][CH:33]=[CH:34][CH:35]=2)[C:30]([C:37]([NH:1][CH:2]([CH2:12][C:13]2[CH:18]=[CH:17][CH:16]=[C:15]([O:19][C:20]([F:25])([F:24])[CH:21]([F:23])[F:22])[CH:14]=2)[CH:3]([C:5]2[CH:10]=[CH:9][CH:8]=[C:7]([Cl:11])[CH:6]=2)[OH:4])=[O:38])=[CH:29][CH:28]=1

Participants

7

Reactant 4

HCID 684484-Fluoro-1-naphthoic acidHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 27960291-Hydroxybenzotriazole hydrateHCID 22261910(1RS,2SR)-2-amino-1-(3-chlorophenyl)-3-[3-(1,1,2,2-tetrafluoroethoxy)phenyl]propan-1-ol

Product 1

HCID 222622184-fluoro-N-{(1RS,2SR)-2-(3-chlorophenyl)-2-hydroxy-1-[3-(1,1,2,2-tetrafluoroethoxy)benzyl]ethyl}-1-naphthamide

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 6342AcetonitrileSolvent

Procedure

To a solution of (1RS,2SR)-2-amino-1-(3-chlorophenyl)-3-[3-(1,1,2,2-tetrafluoroethoxy)phenyl]propan-1-ol (300 mg, 0.79 mmol) in acetonitrile (20 ml) were added 4-fluoronaphthalenecarboxylic acid (151 mg, 0.79 mmol), 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide hydrochloride (228 mg, 1.19 mmol) and 1-hydroxybenzotriazole hydrate (122 mg, 0.79 mmol), and the mixture was stirred overnight at room temperature. The reaction solution was diluted with water (100 ml) and extracted with ethyl acetate (100 ml×2). The extract was washed successively with water and saturated brine, dried (anhydrous magnesium sulfate) and evaporated under reduced pressure. The residue was purified by silica gel column chromatography (hexane:ethyl acetate=4:1-ethyl acetate). Recrystallization from ethyl acetate-hexane gave the objective substance (163 mg, 37%).

Workup

  1. extractionextracted with ethyl acetate (100 ml×2)
  2. washThe extract was washed successively with water and saturated brine
  3. dry with materialdried (anhydrous magnesium sulfate)
  4. customevaporated under reduced pressure
  5. customThe residue was purified by silica gel column chromatography (hexane:ethyl acetate=4:1-ethyl acetate)
  6. customRecrystallization from ethyl acetate-hexane
  7. customgave the objective substance (163 mg, 37%)

Sources & evidence

ORD record
ord-c5f7c2f0341a4e3d9b1ff87b02448d9f
Source dataset
uspto-grants-2006_01
Patent number
US06982348B2

Reaction notes

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