Cesium carbonate → 4-[3-[6-(5-Ethanesulfonyl-4'-chloro-biphenyl-3-yloxy)-hexyl]-2-(2-ethoxycarbonyl-ethyl)-phenoxy]-butyric acid ethyl ester
Reaction equation
[CH2:1]([O:3][C:4](=[O:41])[CH2:5][CH2:6][CH2:7][O:8][C:9]1[CH:14]=[CH:13][CH:12]=[C:11]([CH2:15][CH2:16][CH2:17][CH2:18][CH2:19][CH2:20][O:21][C:22]2[CH:27]=[C:26]([S:28]([CH2:31][CH3:32])(=[O:30])=[O:29])[CH:25]=[C:24](Br)[CH:23]=2)[C:10]=1[CH2:34][CH2:35][C:36]([O:38][CH2:39][CH3:40])=[O:37])[CH3:2].[Cl:42][C:43]1[CH:48]=[CH:47][C:46](B(O)O)=[CH:45][CH:44]=1.C(=O)([O-])[O-].[Cs+].[Cs+]>C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.Cl[Pd]Cl.[Fe+2]>[CH2:1]([O:3][C:4](=[O:41])[CH2:5][CH2:6][CH2:7][O:8][C:9]1[CH:14]=[CH:13][CH:12]=[C:11]([CH2:15][CH2:16][CH2:17][CH2:18][CH2:19][CH2:20][O:21][C:22]2[CH:23]=[C:24]([C:46]3[CH:47]=[CH:48][C:43]([Cl:42])=[CH:44][CH:45]=3)[CH:25]=[C:26]([S:28]([CH2:31][CH3:32])(=[O:30])=[O:29])[CH:27]=2)[C:10]=1[CH2:34][CH2:35][C:36]([O:38][CH2:39][CH3:40])=[O:37])[CH3:2]Participants
5
Reactant 3
Product 1
Reagents, catalysts & solvents 1
Procedure
A similar procedure as described in Example 41, step 1 was used, starting from 4-[3-[6-(3-bromo-5-ethanesulfonyl-phenoxy)-hexyl]-2-(2-ethoxycarbonyl-ethyl)-phenoxy]-butyric acid ethyl ester (161 mg, 0.25 mmol), 4-chloro-phenylboronic acid (81 mg, 0.50 mmol), [1,1′-bis(diphenylphosphino)ferrocene]dichloropalladium(II) (27 mg, 0.038 mmol), and cesium carbonate (162 mg, 0.5 mmol) to afford 4-[3-[6-(5-ethanesulfonyl-4′-chloro-biphenyl-3-yloxy)-hexyl]-2-(2-ethoxycarbonyl-ethyl)-phenoxy]-butyric acid ethyl ester (130 mg, 77%) as a colorless viscous oil: ES(+)-HRMS m/e calcd for C37H47ClO8S (M+Na)+ 709.2572, found 709.2572.
Sources & evidence
- ORD record
- ord-8c61b119274045678b6e88efa795d571
- Source dataset
- uspto-grants-2012_01
- Patent number
- US08093253B2
Reaction notes
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