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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1771803Generated: November 3, 2026

Lithium Hydroxide → US9249085, I(am)

https://huagongshe.com/reaction/1771803

Reaction equation

Participants

RoleNameHCIDCharge
ReactantLithium HydroxideHCID 3939—
ReactantIsopropyl 2-[3-[[2-fluoro-3-(3-fluorophenyl)-5-methyl-phenyl]methylamino]-2,4-dimethyl-phenoxy]acetateHCID 89443725—
SolventTetrahydrofuranHCID 8028—
ProductUS9249085, I(am)HCID 8944387341%

Reaction Steps

To a solution of isopropyl 2-[3-[[2-fluoro-3-(3-fluorophenyl)-5-methyl-phenyl]methylamino]-2,4-dimethyl-phenoxy]acetate (80 mg, 0.18 mmol, 1.0 eq) in THF (8 mL) at 0° C. was added LiOH (2M aqueous solution, 4 mL, 8.0 mmol). The reaction mixture was allowed to warm to room temperature and stirred overnight. The THF was removed and the remaining aqueous solution was diluted with water. The pH was adjusted to pH 4-6 by addition of diluted HCl. The solid precipitate that formed was collected by filtration, washed with water and dried in vacuo to give target compound as a yellow solid (30 mg, 41%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09249085B2
Source datasetuspto-grants-2016_02
ORD IDord-714660e684c04824925cf676593423d7
Source noteuspto-grants-2016_02