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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 546960Generated: October 31, 2026

Sodium Hydroxide → [5-(4-{1-ethyl-1-[4-((E)-3-ethyl-3-hydroxy-1-pentenyl)-3-methyl-phenyl]-propyl}-2-methyl-phenyl)-pyridin-3-yl]-acetic Acid

https://huagongshe.com/reaction/546960

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium HydroxideHCID 14798—
ReactantAmmonium ChlorideHCID 25517—
Reactant[5-(4-{1-ethyl-1-[4-((E)-3-ethyl-3-hydroxy-1-pentenyl)-3-methyl-phenyl]-propyl}-2-methyl-phenyl)-pyridin-3-yl]-acetic Acid Methyl EsterHCID 57709080—
SolventMethanolHCID 887—
Product[5-(4-{1-ethyl-1-[4-((E)-3-ethyl-3-hydroxy-1-pentenyl)-3-methyl-phenyl]-propyl}-2-methyl-phenyl)-pyridin-3-yl]-acetic AcidHCID 5770897294.9%

Reaction Steps

A 2 N sodium hydroxide aqueous solution (0.22 mL) was added to a solution of [5-(4-{1-ethyl-1-[4-((E)-3-ethyl-3-hydroxy-1-pentenyl)-3-methyl-phenyl]-propyl}-2-methyl-phenyl)-pyridin-3-yl]-acetic acid methyl ester (Example 82-(1); 37.1 mg, 0.07 mmol) in methanol (1.2 mL), and the mixture was stirred for four hours. A saturated aqueous ammonium chloride solution was added to the reaction mixture, followed by extraction with ethyl acetate. The organic layer was washed with water, dried over anhydrous sodium sulfate and concentrated under reduced pressure to give the title compound (33.2 mg, 91%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07935688B2
Source datasetuspto-grants-2011_05
ORD IDord-9e6fc6c3e90c4892b9549f7be43c3e37
Source noteuspto-grants-2011_05