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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 493916Generated: October 31, 2026

Hydrochloric Acid → HCID 18619277, compound

https://huagongshe.com/reaction/493916

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantIsoamyl NitriteHCID 8053—
ReactantHCID 18619202HCID 18619202—
CatalystCupric ChlorideHCID 24014—
CatalystCuprous chlorideHCID 62652—
SolventAcetonitrileHCID 6342—
ProductHCID 18619277HCID 18619277—

Reaction Steps

First, isoamyl nitrite is added dropwise to a mixture of methyl [3-{2-amino-4-fluoro-5-[3-methyl-2,6-dioxo-4-(trifluoromethyl)-1,2,3,6-tetrahydropyrimidin-1-yl]phenoxy}-6-chloro-2-pyridyloxy]acetate, copper (I) chloride, copper (II) chloride, and acetonitrile at room temperature, and the mixture is stirred for 1 hour. The reaction mixture is poured into 2% hydrochloric acid, and the mixture is extracted with ethyl acetate. The organic layer is washed with saturated aqueous sodium chloride solution, dried over anhydrous magnesium sulfate, and then concentrated. The residue is subjected to silica gel column chromatography to give methyl [3-{2 -chloro-4-fluoro-5-[3-methyl-2,6-dioxo-4-(trifluoromethyl)-1,2,3,6-tetrahydropyrimidin-1-yl]phenoxy}-6-chloro-2-pyridyloxy]acetate (compound a-108).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07538072B2
Source datasetuspto-grants-2009_05
ORD IDord-e135b0609fec4d7492c75026bd7e553b
Source noteuspto-grants-2009_05