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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 80052Generated: October 29, 2026

Methanol → 1-(1H-indazol-5-yl)-3-(4-methylpyridin-3-yl)imidazolidin-2-one

https://huagongshe.com/reaction/80052

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethanolHCID 887—
ReactantTrifluoroacetic acidHCID 6422—
Reactant1-(4-Methyl-pyridin-3-yl)-3-[1-(2-trimethylsilanyl-ethoxymethyl)-1H-indazol-5-yl]-imidazolidin-2-oneHCID 68785748—
SolventChloroformHCID 6212—
SolventDichloromethaneHCID 6344—
Product1-(1H-indazol-5-yl)-3-(4-methylpyridin-3-yl)imidazolidin-2-oneHCID 4987196625.6%

Reaction Steps

TFA (0.096 g, 0.00084 mol) was added to solution of 1-(4-methyl-pyridin-3-yl)-3-[1-(2-trimethylsilanyl-ethoxymethyl)-1H-indazol-5-yl]-imidazolidin-2-one (0.24 g, 0.00056 mol) in DCM (10 mL) at 0° C. The reaction mixture was stirred at room temperature overnight. The reaction was monitored by TLC (10% MeOH in CHCl3). The reaction mixture was concentrated and the concentrate was purified by preparative HPLC to afford 42 mg of the product (19.47% yield).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUSRE045173E1
Source datasetuspto-grants-2014_09
ORD IDord-59f06296de6148919d5c20b7c60cfaee
Source noteuspto-grants-2014_09