Bicyclo[2.2.1]heptane-1-methanesulfonic acid, 7,7-dimethyl-2-oxo-, (1S)- → HCID 18347212, compound
Reaction equation
C12(CS(O)(=O)=O)C(C)(C)C(CC1)CC2=O.O[CH2:17][C:18]1[S:19][C:20]([C:35]2[CH:40]=[CH:39][CH:38]=[CH:37][CH:36]=2)=[C:21]([C:27]2[CH:32]=[CH:31][C:30]([S:33][CH3:34])=[CH:29][CH:28]=2)[C:22]=1[CH2:23][C:24]([OH:26])=[O:25]>C(Cl)Cl>[CH3:34][S:33][C:30]1[CH:31]=[CH:32][C:27]([C:21]2[C:22]3[CH2:23][C:24](=[O:26])[O:25][CH2:17][C:18]=3[S:19][C:20]=2[C:35]2[CH:36]=[CH:37][CH:38]=[CH:39][CH:40]=2)=[CH:28][CH:29]=1Participants
4
Reactant 2
Product 1
Reagents, catalysts & solvents 1
Procedure
(±)-10-camphorsulfonic acid (5 mg) was added to a solution of [2-hydroxymethyl-4-(4-methylsulfanylphenyl)-5-phenylthiophen-3-yl]acetic acid (100 mg) (Step 3) in CH2Cl2 (5 mL) and the resulting solution was stirred overnight. The solution was diluted with CH2Cl and washed with a saturated solution of NaHCO3, dried over MgSO4, filtered and the solvent was evaporated under vacuum. Purification by silica gel chromatography using 20% of EtOAc in hexane gave the title compound.
Workup
- additionThe solution was diluted with CH2Cl
- washwashed with a saturated solution of NaHCO3
- dry with materialdried over MgSO4
- filtrationfiltered
- customthe solvent was evaporated under vacuum
- customPurification by silica gel chromatography
Sources & evidence
- ORD record
- ord-7cae710b25324f2a8aff2534b3301c0a
- Source dataset
- uspto-grants-2001_12
- Patent number
- US06329421B1
Reaction notes
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