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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 656765Generated: October 29, 2026

Lithium Hydroxide → HCID 44608297, compound

https://huagongshe.com/reaction/656765

Reaction equation

Participants

RoleNameHCIDCharge
ReactantLithium HydroxideHCID 3939—
ReactantMethyl iodideHCID 6328—
ReactantSodium hydrideHCID 24758—
ReactantHCID 44600604HCID 44600604—
ReactantHCID 58372760HCID 58372760—
SolventMethanolHCID 887—
SolventWaterHCID 962—
SolventAcetonitrileHCID 6342—
ProductHCID 44608297HCID 44608297—

Reaction Steps

To {3-[4-(2,2-dimethyl-propionylamino)-2-(2,2,2-trifluoro-ethylsulfanylmethyl)-phenoxy]-4-methoxy-phenyl}-acetic acid (0.128 g, 0.26 mmol) in MeCN (3 mL) was added iodomethane (0.03 mL, 0.53 mmol), followed by sodium hydride (60% in mineral oil; 0.021 g, 0.53 mmol). The reaction was stirred at room temperature, but only starting material was seen by analytical LCMS, so the reaction was heated to 60° C. for 2 hours, and then cooled to room temperature and stirred for 2 days under N2. The mixture was used directly in the hydrolysis step. To a solution of {3-[4-[(2,2-dimethyl-propionyl)-methyl-amino]-2-(2,2,2-trifluoro-ethylsulfanylmethyl)-phenoxy]-4-methoxy-phenyl}-acetic acid methyl ester (0.26 mmol) in MeCN was added H2O, MeOH, and lithium hydroxide, and the reaction was heated to 65° C. for 1 hour to give the title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08071807B2
Source datasetuspto-grants-2011_12
ORD IDord-5ee13f17ffbd4800948da065df87d5f9
Source noteuspto-grants-2011_12