4-Fluoro-1-naphthoic acid → HCID 22261875, compound

HRID 1610616Notes

Reaction equation

HRID 1610616 reaction equation
[NH2:1][CH:2]([CH2:12][C:13]1[CH:18]=[CH:17][CH:16]=[C:15]([S:19][C:20]([F:23])([F:22])[F:21])[CH:14]=1)[CH:3]([C:5]1[CH:10]=[CH:9][C:8]([F:11])=[CH:7][CH:6]=1)[OH:4].[F:24][C:25]1[C:34]2[C:29](=[CH:30][CH:31]=[CH:32][CH:33]=2)[C:28]([C:35](O)=[O:36])=[CH:27][CH:26]=1.Cl.C(N=C=NCCCN(C)C)C.O.ON1C2C=CC=CC=2N=N1>C(#N)C.O>[F:24][C:25]1[C:34]2[C:29](=[CH:30][CH:31]=[CH:32][CH:33]=2)[C:28]([C:35]([NH:1][CH:2]([CH2:12][C:13]2[CH:18]=[CH:17][CH:16]=[C:15]([S:19][C:20]([F:23])([F:22])[F:21])[CH:14]=2)[CH:3]([C:5]2[CH:10]=[CH:9][C:8]([F:11])=[CH:7][CH:6]=2)[OH:4])=[O:36])=[CH:27][CH:26]=1

Participants

7

Reactant 4

HCID 684484-Fluoro-1-naphthoic acidHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 27960291-Hydroxybenzotriazole hydrateHCID 22261753HCID 22261753, compound

Product 1

HCID 22261875HCID 22261875, compound

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 6342AcetonitrileSolvent

Procedure

To a solution of (1RS,2SR)-2-amino-1-(4-fluorophenyl)-3-{3-[(trifluoromethyl)thio]phenyl}propan-1-ol (450 mg, 1.51 mmol) in acetonitrile (20 ml) were added 4-fluoronaphthalenecarboxylic acid (287 mg, 1.51 mmol), 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide hydrochloride (435 mg, 2.27 mmol) and 1-hydroxybenzotriazole hydrate (231 mg, 1.51 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=2:1-ethyl acetate). Recrystallization from ethyl acetate-hexane gave the objective substance (447 mg, 57%).

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=2:1-ethyl acetate)
  6. customRecrystallization from ethyl acetate-hexane
  7. customgave the objective substance (447 mg, 57%)

Sources & evidence

ORD record
ord-3182130bb4ef4ed39e916e4db2ddf63a
Source dataset
uspto-grants-2006_01
Patent number
US06982348B2

Reaction notes

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