Acetonitrile → 2-(4-((2S)-2-((6-(benzyloxy)-3-oxa-8-azabicyclo[3.2.1]oct-8-yl)methyl)-4-(2-thiophenylsulfonyl)-1-piperazinyl)phenyl)-1,1,1-trifluoro-2-propanol

HRID 1972450Notes

Reaction equation

HRID 1972450 reaction equation
CS(O[CH2:6][C@H:7]1[CH2:12][N:11]([S:13]([C:16]2[S:17][CH:18]=[CH:19][CH:20]=2)(=[O:15])=[O:14])[CH2:10][CH2:9][N:8]1[C:21]1[CH:26]=[CH:25][C:24]([C:27]([OH:33])([CH3:32])[C:28]([F:31])([F:30])[F:29])=[CH:23][CH:22]=1)(=O)=O.Cl.[CH2:35]([O:42][CH:43]1[CH2:49][CH:48]2[NH:50][CH:44]1[CH2:45][O:46][CH2:47]2)[C:36]1[CH:41]=[CH:40][CH:39]=[CH:38][CH:37]=1.C(=O)([O-])[O-].[K+].[K+].CC#N>CCOC(C)=O>[CH2:35]([O:42][CH:43]1[CH2:49][CH:48]2[N:50]([CH2:6][C@H:7]3[CH2:12][N:11]([S:13]([C:16]4[S:17][CH:18]=[CH:19][CH:20]=4)(=[O:14])=[O:15])[CH2:10][CH2:9][N:8]3[C:21]3[CH:22]=[CH:23][C:24]([C:27]([OH:33])([CH3:32])[C:28]([F:31])([F:30])[F:29])=[CH:25][CH:26]=3)[CH:44]1[CH2:45][O:46][CH2:47]2)[C:36]1[CH:37]=[CH:38][CH:39]=[CH:40][CH:41]=1

Participants

6

Reactant 4

HCID 6342AcetonitrileHCID 11430Potassium CarbonateHCID 665827036-(Benzyloxy)-3-oxa-8-azabicyclo[3.2.1]octane hydrochlorideHCID 86670301((2R)-4-(2-thiophenylsulfonyl)-1-(4-(2,2,2-trifluoro-1-hydroxy-1-methylethyl)phenyl)-2-piperazinyl)methyl methanesulfonate2×

Product 1

HCID 665827812-(4-((2S)-2-((6-(benzyloxy)-3-oxa-8-azabicyclo[3.2.1]oct-8-yl)methyl)-4-(2-thiophenylsulfonyl)-1-piperazinyl)phenyl)-1,1,1-trifluoro-2-propanol

Reagents, catalysts & solvents 1

HCID 8857Ethyl AcetateSolvent

Conditions

Temperature
150 °C

Procedure

A 10 mL vial was charged with ((2R)-4-(2-thiophenylsulfonyl)-1-(4-(2,2,2-trifluoro-1-hydroxy-1-methylethyl)phenyl)-2-piperazinyl)methyl methanesulfonate (0.207 g, 0.391 mmol, Intermediate B), 6-(benzyloxy)-3-oxa-8-azabicyclo[3.2.1]octane hydrochloride (endo) (0.100 g, 0.391 mmol, J. Org. Chem. 2010, 75, 1643), potassium carbonate (0.162 g, 1.173 mmol), and 3 mL of MeCN. The tube was sealed and heated in a microwave reactor (Emrys Optimizer Automated Microwave Synthesizer, Uppsala, Sweden) at 150° C. for 1 h. The mixture was diluted with EtOAc, filtered and the filtrate was concentrated and purified via column chromatography on silica gel (0 to 50% EA/Hex) to 2-(4-((2S)-2-((6-(benzyloxy)-3-oxa-8-azabicyclo[3.2.1]oct-8-yl)methyl)-4-(2-thiophenylsulfonyl)-1-piperazinyl)phenyl)-1,1,1-trifluoro-2-propanol as a mixture of four endo isomers (0.130 g).

Workup

  1. customThe tube was sealed
  2. filtrationfiltered
  3. concentrationthe filtrate was concentrated
  4. custompurified via column chromatography on silica gel (0 to 50% EA/Hex) to 2-(4-((2S)-2-((6-(benzyloxy)-3-oxa-8-azabicyclo[3.2.1]oct-8-yl)methyl)-4-(2-thiophenylsulfonyl)-1-piperazinyl)phenyl)-1,1,1-trifluoro-2-propanol as a mixture of four endo isomers (0.130 g)

Sources & evidence

ORD record
ord-0128b35707814946aa7d87f8d78773e4
Source dataset
uspto-grants-2013_04
Patent number
US08431563B2

Reaction notes

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