2-Bromobutyrate → [2-Chloro-4-(3-cyclopentyl-3-oxo-propyl)-phenoxy]-acetic acid methyl ester
Reaction equation
[Cl:1][C:2]1[CH:3]=[C:4]([CH2:9][CH2:10][C:11]([CH:13]2[CH2:17][CH2:16][CH2:15][CH2:14]2)=[O:12])[CH:5]=[CH:6][C:7]=1[OH:8].BrC1C=[CH:23][C:22]([OH:25])=C(F)C=1.BrC(CC)[C:29]([O-])=[O:30]>>[CH3:29][O:30][C:22](=[O:25])[CH2:23][O:8][C:7]1[CH:6]=[CH:5][C:4]([CH2:9][CH2:10][C:11]([CH:13]2[CH2:17][CH2:16][CH2:15][CH2:14]2)=[O:12])=[CH:3][C:2]=1[Cl:1]Participants
4
Procedure
The title compound was prepared analogously to Step 1 from Example A(52), where 3-(3-Chloro-4-hydroxy-phenyl)-1-cyclopentyl-propan-1-one was substituted for 4-Bromo-2-fluorophenol and methyl bromo acetate was substituted for methyl □-bromobutyrate in Step 1 of that example. Yield 78%.
Sources & evidence
- ORD record
- ord-b17eb2160b4a4e7a886e03c8929ee153
- Source dataset
- uspto-grants-2006_12
- Patent number
- US07148226B2
Reaction notes
Loading…