Hydrochloric Acid → (R)-(4'-{1-ethyl-1-[4-(3-hydroxy-4,4-dimethyl-pentyl)-3-methyl-phenyl]-propyl}-2'-methyl-biphenyl-3-yl)-hydroxy-acetic Acid

HRID 547105Notes

Reaction equation

HRID 547105 reaction equation
[OH-].[Na+].C[O:4][C:5](=[O:41])[C@@H:6]([C:8]1[CH:9]=[C:10]([C:14]2[CH:19]=[CH:18][C:17]([C:20]([CH2:38][CH3:39])([C:23]3[CH:28]=[CH:27][C:26]([CH2:29][CH2:30][CH:31]([OH:36])[C:32]([CH3:35])([CH3:34])[CH3:33])=[C:25]([CH3:37])[CH:24]=3)[CH2:21][CH3:22])=[CH:16][C:15]=2[CH3:40])[CH:11]=[CH:12][CH:13]=1)[OH:7].Cl>CO>[CH2:21]([C:20]([C:17]1[CH:18]=[CH:19][C:14]([C:10]2[CH:11]=[CH:12][CH:13]=[C:8]([C@@H:6]([OH:7])[C:5]([OH:41])=[O:4])[CH:9]=2)=[C:15]([CH3:40])[CH:16]=1)([C:23]1[CH:28]=[CH:27][C:26]([CH2:29][CH2:30][CH:31]([OH:36])[C:32]([CH3:34])([CH3:35])[CH3:33])=[C:25]([CH3:37])[CH:24]=1)[CH2:38][CH3:39])[CH3:22]

Participants

5

Reactant 3

HCID 313Hydrochloric AcidHCID 14798Sodium HydroxideHCID 57708910(R)-(4'-{1-ethyl-1-[4-(3-hydroxy-4,4-dimethyl-pentyl)-3-methyl-phenyl]-propyl}-2'-methyl-biphenyl-3-yl)hydroxy-acetic acid methyl ester

Product 1

HCID 57709134(R)-(4'-{1-ethyl-1-[4-(3-hydroxy-4,4-dimethyl-pentyl)-3-methyl-phenyl]-propyl}-2'-methyl-biphenyl-3-yl)-hydroxy-acetic AcidYield 101.9%

Reagents, catalysts & solvents 1

HCID 887MethanolSolvent

Procedure

A 2 N sodium hydroxide aqueous solution (0.095 mL) was added to a solution of (R)-(4′-{1-ethyl-1-[4-(3-hydroxy-4,4-dimethyl-pentyl)-3-methyl-phenyl]-propyl}-2′-methyl-biphenyl-3-yl)hydroxy-acetic acid methyl ester (Example 157-(2); 24.2 mg, 0.0456 mmol) in methanol (0.65 mL) at room temperature, and the mixture was stirred at room temperature for four hours. The mixture was acidified with dilute hydrochloric acid aqueous solution, followed by extraction with ethyl acetate. The extract was dried over anhydrous magnesium sulfate and then concentrated under reduced pressure to give the title compound (24 mg, 100%).

Workup

  1. extractionfollowed by extraction with ethyl acetate
  2. dry with materialThe extract was dried over anhydrous magnesium sulfate
  3. concentrationconcentrated under reduced pressure

Sources & evidence

ORD record
ord-1cbdbdbb3d4b4cea91ed6ab3734f2512
Source dataset
uspto-grants-2011_05
Patent number
US07935688B2

Reaction notes

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