[Cl:1][C:2]1[CH:41]=[CH:40][C:5]([CH2:6][CH2:7][NH:8][C:9]([C:11]2[CH:39]=[CH:38][C:14]([O:15][C:16]3[C:21]([C:22]4[CH:27]=[CH:26][C:25]([S:28]([CH3:31])(=[O:30])=[O:29])=[CH:24][CH:23]=4)=[CH:20][C:19]([CH2:32][C:33]([O:35]CC)=[O:34])=[CH:18][CH:17]=3)=[CH:13][CH:12]=2)=[O:10])=[CH:4][CH:3]=1.[OH-].[Na+].O>O1CCOCC1.C(OCC)(=O)C.Cl>[Cl:1][C:2]1[CH:3]=[CH:4][C:5]([CH2:6][CH2:7][NH:8][C:9]([C:11]2[CH:12]=[CH:13][C:14]([O:15][C:16]3[C:21]([C:22]4[CH:27]=[CH:26][C:25]([S:28]([CH3:31])(=[O:30])=[O:29])=[CH:24][CH:23]=4)=[CH:20][C:19]([CH2:32][C:33]([OH:35])=[O:34])=[CH:18][CH:17]=3)=[CH:38][CH:39]=2)=[O:10])=[CH:40][CH:41]=1Ethyl 2-(6-(4-(4-chlorophenethylcarbamoyl)phenoxy)-4′-(methylsulfonyl)biphenyl-3-yl)acetate (20 mg, 0.0338 mmol) was diluted with dioxane (1 mL) followed by the addition of NaOH (0.0676 ml, 0.338 mmol) and 300 μL of water. After stirring for 3 hours, the reaction was diluted with ethyl acetate and 2N HCl. The layers were separated and the organic layer was dried over MgSO4, filtered and concentrated to yield 2-(6-(4-(4-chlorophenethylcarbamoyl)phenoxy)-4′-(methylsulfonyl)biphenyl-3-yl)acetic acid (10 mg, 52.5% yield). (400 MHz, CD3Cl3, CD3OD) 7.90 (d, 2H), 7.70 (d, 2H), 7.60 (d, 2H), 7.40 (s, 1H), 7.35 (d, 1H), 7.25 (d, 2H), 7.15 (d, 2H), 7.05 (d, 1H), 6.85 (d, 2H), 6.55 (t, 1H), 3.63 (m, 4H), 3.05 (s, 3H), 2.90 (t, 2H).
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