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Sodium Hydroxide → 4-[[(1S,4S)-5-[[4-(2,2,3,3-tetrafluoropropoxy)phenyl]methyl]-2,5-diazabicyclo[2.2.1]hept-2-yl]methyl]benzoic acid

HRID 1046344
Notes
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Reaction equation

HRID 1046344 reaction equation
[F:1][C:2]([F:33])([CH:30]([F:32])[F:31])[CH2:3][O:4][C:5]1[CH:10]=[CH:9][C:8]([CH2:11][N:12]2[CH2:17][C@@H:16]3[CH2:18][C@H:13]2[CH2:14][N:15]3[CH2:19][C:20]2[CH:29]=[CH:28][C:23]([C:24]([O:26]C)=[O:25])=[CH:22][CH:21]=2)=[CH:7][CH:6]=1.[OH-].[Na+]>CO>[F:33][C:2]([F:1])([CH:30]([F:32])[F:31])[CH2:3][O:4][C:5]1[CH:10]=[CH:9][C:8]([CH2:11][N:12]2[CH2:17][C@@H:16]3[CH2:18][C@H:13]2[CH2:14][N:15]3[CH2:19][C:20]2[CH:29]=[CH:28][C:23]([C:24]([OH:26])=[O:25])=[CH:22][CH:21]=2)=[CH:7][CH:6]=1
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

4

Reactant 2

HCID 14798Sodium HydroxideHCID 86613444methyl 4-[[(1S,4S)-5-[[4-(2,2,3,3-tetrafluoropropoxy)phenyl]methyl]-2,5-diazabicyclo[2.2.1]hept-2-yl]methyl]benzoate

Product 1

HCID 468990474-[[(1S,4S)-5-[[4-(2,2,3,3-tetrafluoropropoxy)phenyl]methyl]-2,5-diazabicyclo[2.2.1]hept-2-yl]methyl]benzoic acidYield 52.9%

Reagents, catalysts & solvents 1

HCID 887MethanolSolvent

Procedure

Methyl 4-[[(1S,4S)-5-[[4-(2,2,3,3-tetrafluoropropoxy)phenyl]methyl]-2,5-diazabicyclo[2.2.1]hept-2-yl]methyl]benzoate (177 mg, 0.38 mmol) was stirred with 1.9 mL aqueous sodium hydroxide solution (2 M) in 3.9 mL methanol overnight at room temperature, and then concentrated under reduced pressure. The residue was diluted with water, adjusted to pH 8 with 1 M aqueous hydrochloric acid, and extracted with butanol. The combined organic layers were concentrated under reduced pressure. Flash chromatography gave 91 mg of 4-[[(1S,4S)-5-[[4-(2,2,3,3-tetrafluoropropoxy)phenyl]methyl]-2,5-diazabicyclo[2.2.1]hept-2-yl]methyl]benzoic acid; 1H NMR (300 MHz, CD3OD) δ 7.92 (d, 2H), 7.41 (d, 2H), 7.40 (d, 2H), 7.02 (d, 2H), 6.32 (tt, 1H), 4.45 (tt, 2H), 3.98 (d, 2H), 3.88 (d, 2H), 3.69 (br s, 1H), 3.64 (br s, 1H), 3.17 (d, 1H), 3.12 (d, 1H), 2.90 (dd, 1H), 2.85 (dd, 1H), 2.02 (s, 2H) ppm.

Workup

  1. concentrationconcentrated under reduced pressure
  2. additionThe residue was diluted with water
  3. extractionextracted with butanol
  4. concentrationThe combined organic layers were concentrated under reduced pressure

Sources & evidence

ORD record
ord-2b3f9487967641f0ba89f2465800665e
Source dataset
uspto-grants-2013_10
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US08569303B2

Reaction notes

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