Sodium Hydroxide → Sodium [4-[2-(5-cyano-2-hydroxybenzenesulfonylamino)ethyl]-2'-methanesulfonylbiphenyl-3-yloxy]acetate
Reaction equation
[C:1]([C:3]1[CH:4]=[CH:5][C:6]([OH:36])=[C:7]([S:9]([NH:12][CH2:13][CH2:14][C:15]2[CH:20]=[CH:19][C:18]([C:21]3[CH:26]=[CH:25][CH:24]=[CH:23][C:22]=3[S:27]([CH3:30])(=[O:29])=[O:28])=[CH:17][C:16]=2[O:31][CH2:32][C:33]([OH:35])=[O:34])(=[O:11])=[O:10])[CH:8]=1)#[N:2].[OH-].[Na+:38]>C(O)C>[C:1]([C:3]1[CH:4]=[CH:5][C:6]([OH:36])=[C:7]([S:9]([NH:12][CH2:13][CH2:14][C:15]2[CH:20]=[CH:19][C:18]([C:21]3[CH:26]=[CH:25][CH:24]=[CH:23][C:22]=3[S:27]([CH3:30])(=[O:29])=[O:28])=[CH:17][C:16]=2[O:31][CH2:32][C:33]([O-:35])=[O:34])(=[O:10])=[O:11])[CH:8]=1)#[N:2].[Na+:38]Participants
4
Reactant 2
Product 1
Reagents, catalysts & solvents 1
Procedure
To a stirred solution of 146 g of [4-[2-(5-cyano-2-hydroxybenzenesulfonylamino)ethyl]-2′-methanesulfonylbiphenyl-3-yloxy]-acetic acid in 580 mL of ethanol was added 137 mL of 2 mol/L sodium hydroxide solution under ice-cooling, and the solvent was removed under reduced pressure. The residue was suspended with 1.16 L of ethanol, and the mixture was stirred under reflux for an hour, then at room temperature overnight. The obtained white solid was collected by filtration to give 129 g of sodium [4-[2-(5-cyano-2-hydroxybenzenesulfonylamino)ethyl]-2′-methanesulfonylbiphenyl-3-yloxy]acetate.