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Benzoyl isothiocyanate → N-(((3S,4R,5S)-3-(2-fluorophenyl)-4-(hydroxymethyl)-5-(trifluoromethyl)tetrahydrofuran-3-yl)carbamothioyl)benzamide

HRID 2045843
Notes
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Reaction equation

HRID 2045843 reaction equation
[C:1]([N:9]=[C:10]=[S:11])(=[O:8])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[NH2:12][C@@:13]1([C:24]2[CH:29]=[CH:28][CH:27]=[CH:26][C:25]=2[F:30])[CH2:17][O:16][C@H:15]([C:18]([F:21])([F:20])[F:19])[C@H:14]1[CH2:22][OH:23].C(=O)(O)[O-].[Na+]>C(Cl)Cl>[F:30][C:25]1[CH:26]=[CH:27][CH:28]=[CH:29][C:24]=1[C@@:13]1([NH:12][C:10]([NH:9][C:1](=[O:8])[C:2]2[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=2)=[S:11])[C@H:14]([CH2:22][OH:23])[C@@H:15]([C:18]([F:19])([F:20])[F:21])[O:16][CH2:17]1
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

5

Reactant 3

HCID 68284Benzoyl isothiocyanateHCID 516892Sodium BicarbonateHCID 66869282((2S,3R,4S)-4-amino-4-(2-fluorophenyl)-2-(trifluoromethyl)tetrahydrofuran-3-yl)methanol

Product 1

HCID 60169627N-(((3S,4R,5S)-3-(2-fluorophenyl)-4-(hydroxymethyl)-5-(trifluoromethyl)tetrahydrofuran-3-yl)carbamothioyl)benzamide

Reagents, catalysts & solvents 1

HCID 6344
Dichloromethane
Solvent

Procedure

Benzoyl isothiocyanate (19.0 mL) was added to a solution containing ((2S,3R,45)-4-amino-4-(2-fluorophenyl)-2-(trifluoromethyl)tetrahydrofuran-3-yl)methanol (28.72 g) in DCM (150 mL), and the mixture was stirred at RT for 18 h. Sodium bicarbonate (sat., aq., 200 mL) was then added, the mixture extracted with EtOAc (3×300 mL), dried over MgSO4 and concentrated under reduced pressure. The residue was purified by silica gel column chromatography (5% to 30% EtOAc in hexanes) to obtain the title compound (37.07 g). 1H-NMR (400 MHz, CDCl3) δ (ppm): 3.22 (dd, J=8.1, 4.5 Hz, 1H), 3.31 (td, J=8.0, 3.0 Hz, 1H), 3.94-4.07 (m, 1H), 4.31-4.46 (m, 1H), 4.53 (d, J=9.9 Hz, 1H), 4.83 (d, J=9.9 Hz, 1H), 6.97-7.14 (m, 1H), 7.22 (td, J=7.7, 1.3 Hz, 1H), 7.31-7.45 (m, 1H), 7.49-7.61 (m, 2H), 7.61-7.70 (m, 1H), 7.75 (td, J=8.1, 1.5 Hz, 1H), 7.79-7.93 (m, 2H), 8.90 (s, 1H), 11.85 (s, 1H)

Workup

  1. extractionthe mixture extracted with EtOAc (3×300 mL)
  2. dry with materialdried over MgSO4
  3. concentrationconcentrated under reduced pressure
  4. customThe residue was purified by silica gel column chromatography (5% to 30% EtOAc in hexanes)

Sources & evidence

ORD record
ord-bb69ec3b16cd4a669f0628678550e0a1
Source dataset
uspto-grants-2013_11
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US08592408B2

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes