Thiazolidine → HCID 11152021, compound
Reaction equation
C(N(C(C)C)CC)(C)C.[C:10]1([C:24]2[CH:29]=[CH:28][CH:27]=[CH:26][CH:25]=2)[CH:15]=[CH:14][C:13]([CH2:16][CH2:17][CH:18]([OH:23])[CH2:19][C:20]([OH:22])=O)=[CH:12][CH:11]=1.F[P-](F)(F)(F)(F)F.N1(OC(N(C)C)=[N+](C)C)C2N=CC=CC=2N=N1.[S:54]1[CH2:58][CH2:57][NH:56][CH2:55]1>CN(C)C=O>[C:10]1([C:24]2[CH:29]=[CH:28][CH:27]=[CH:26][CH:25]=2)[CH:11]=[CH:12][C:13]([CH2:16][CH2:17][CH:18]([OH:23])[CH2:19][C:20]([N:56]2[CH2:57][CH2:58][S:54][CH2:55]2)=[O:22])=[CH:14][CH:15]=1Participants
Reactant 4
Product 1
Reagents, catalysts & solvents 1
Procedure
Diisopropylethylamine (32 μL, 0.19 mmol) was added to a stirred solution of 5-biphenyl-4-yl-3-hydroxy-pentanoic acid (Example 1, 25 mg, 93 μmol) and O-(7-azabenzotriazol-1-yl)-N,N,N′,N′-tetramethyluronium hexafluorophosphate (70 mg, 0.19 mmol) in dimethylformamide (1 mL) at room temperature under nitrogen. After stirring for 5 minutes, thiazolidine (11 μL, 0.14 mmol) was added then stirring was continued for a further 2 hours. The volatiles were removed by evaporation under reduced pressure and the residue partitioned between dichloromethane (5 mL) and water (5 mL). The phases were separated and the organic phase evaporated under reduced pressure. The residue was purified by column chromatography on silica gel (1:1 ethyl acetate: 40–60 petroleum ether) to give the title compound (15 mg, 47%) as a white solid. LC/MS: 3.22 min; z/e 342, calcd (M+1) 342.
Workup
- stirringthen stirring
- waitwas continued for a further 2 hours
- customThe volatiles were removed by evaporation under reduced pressure
- customthe residue partitioned between dichloromethane (5 mL) and water (5 mL)
- customThe phases were separated
- customthe organic phase evaporated under reduced pressure
- customThe residue was purified by column chromatography on silica gel (1:1 ethyl acetate: 40–60 petroleum ether)
Sources & evidence
- ORD record
- ord-869c8d205e0e4a3eba20182d91b8bff9
- Source dataset
- uspto-grants-2007_07
- Patent number
- US07250439B2
Reaction notes
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