3-[N-Allyl-3-(4-chlorobenzyl)-6-(quinolin-2-ylmethoxy)-indol-2-yl]-2,2-dimethylpropanoic acid → 3-[N-(n-Propyl)-3-(4-chlorobenzyl)-6-(quinoline-2-ylmethoxy)indol-2-yl]-2,2-dimethylpropanoic acid
Reaction equation
[CH2:1]([N:4]1[C:12]2[C:7](=[CH:8][CH:9]=[C:10]([O:13][CH2:14][C:15]3[CH:24]=[CH:23][C:22]4[C:17](=[CH:18][CH:19]=[CH:20][CH:21]=4)[N:16]=3)[CH:11]=2)[C:6]([CH2:25][C:26]2[CH:31]=[CH:30][C:29]([Cl:32])=[CH:28][CH:27]=2)=[C:5]1[CH2:33][C:34]([CH3:39])([CH3:38])[C:35]([OH:37])=[O:36])[CH:2]=[CH2:3]>CCOC(C)=O.[Pd]>[CH2:1]([N:4]1[C:12]2[C:7](=[CH:8][CH:9]=[C:10]([O:13][CH2:14][C:15]3[CH:24]=[CH:23][C:22]4[C:17](=[CH:18][CH:19]=[CH:20][CH:21]=4)[N:16]=3)[CH:11]=2)[C:6]([CH2:25][C:26]2[CH:27]=[CH:28][C:29]([Cl:32])=[CH:30][CH:31]=2)=[C:5]1[CH2:33][C:34]([CH3:38])([CH3:39])[C:35]([OH:37])=[O:36])[CH2:2][CH3:3]Participants
4
Reactant 1
Product 1
Reagents, catalysts & solvents 2
Procedure
A solution of methyl 3-[N-allyl-3-(4-chlorobenzyl)-6-(quinolin-2-ylmethoxy)indol-2-yl]-2,2-dimethylpropanoate (Example 42, methyl ester) (190 mg) was hydrogenated in EtOAc (4 mL) in the presence of 5% Pd on charcoal at atmospheric pressure for 1 hour. Filtration on Celite pad and evaporation of liquors afforded the methyl ester of the title product. Hydrolysis of this ester under the conditions described in Step B of Example 1 provided the title compound. Anal. C, H, N for sodium salt·11/2H2O Calc. C 67.17; H 5.98; N 4.75 Found C 67.38; H 5.44; N 4.85.
Workup
- filtrationFiltration
- customon Celite pad and evaporation of liquors
Sources & evidence
- ORD record
- ord-3bd36a359aba47cbbdfdaca2c09b93fc
- Source dataset
- uspto-grants-1995_01
- Patent number
- US05380850
Reaction notes
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