Reaction equation
C[O:2][C:3](=[O:31])[CH2:4][CH2:5][C:6]1[N:7]([CH2:23][O:24][CH2:25][CH2:26][Si:27]([CH3:30])([CH3:29])[CH3:28])[C:8]([C:17]2[CH:22]=[CH:21][CH:20]=[CH:19][CH:18]=2)=[C:9]([C:11]2[CH:16]=[CH:15][CH:14]=[CH:13][CH:12]=2)[N:10]=1.[OH-].[Na+]>C(O)C>[C:11]1([C:9]2[N:10]=[C:6]([CH2:5][CH2:4][C:3]([OH:31])=[O:2])[N:7]([CH2:23][O:24][CH2:25][CH2:26][Si:27]([CH3:29])([CH3:28])[CH3:30])[C:8]=2[C:17]2[CH:22]=[CH:21][CH:20]=[CH:19][CH:18]=2)[CH:12]=[CH:13][CH:14]=[CH:15][CH:16]=1Participants
4
Reactant 2
Product 1
Reagents, catalysts & solvents 1
Procedure
150 mg of 3-[4,5-diphenyl-1-(2-trimethylsilanyl-ethoxymethyl)-1H-imidazol-2-yl]-propionic acid methyl ester were dissolved in 1 mL of ethanol and treated with 0.7 mL of a 1M aq. solution of sodium hydroxide. The mixture was partitioned between water and Et2O. The aq. layer was separated, acidified with 25%-HCl and extracted with DCM. The organic phase was dried over anh. Na2SO4 and concentrated in vacuo to give 137 mg of 3-[4,5-diphenyl-1-(2-trimethylsilanyl-ethoxymethyl)-1H-imidazol-2-yl]-propionic acid the product as a white solid.
Workup
- customThe mixture was partitioned between water and Et2O
- customThe aq. layer was separated
- extractionextracted with DCM
- dry with materialThe organic phase was dried over anh. Na2SO4
- concentrationconcentrated in vacuo
Sources & evidence
- ORD record
- ord-8c55cd5a7d824a9bbde270638954d690
- Source dataset
- uspto-grants-2012_06
- Patent number
- US08202885B2
Linked notes
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