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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 921832Generated: October 30, 2026

Trifluoroacetic acid → HCID 72710846, compound

https://huagongshe.com/reaction/921832

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTrifluoroacetic acidHCID 6422—
ReactantAnisoleHCID 7519—
ReactantHCID 89922864HCID 89922864—
Solvent1,2-DichloroethaneHCID 11—
ProductHCID 72710846HCID 7271084626.6%

Reaction Steps

2-((2-chloro-5-cyano-4-(3-hydroxypropyl)phenyl)amino)-4-(cyclopropyl(4-methoxybenzyl)amino)imidazo[2,1-f][1,2,4]triazine-7-carbonitrile (30 mg, 0.057 mmol) was taken up in DCE (0.6 mL) and anisole (0.031 mL, 0.284 mmol) was added, followed by TFA (0.175 mli, 2.268 mmol). The reaction was stirred at room temperature overnight. LCMS indicates formation of the TFA ester. The solvent was removed in vacuo and the material dissolved in 2N NH3 in MeOH. The solution was stirred at room temperature for 30 min. The solvent was removed in vacuo and the material was triturated with Et2O to remove the anisole. The material was purified by preparative HPLC to provide 2-((2-chloro-5-cyano-4-(3-hydroxypropyl)phenyl)amino)-4-(cyclopropylamino)imidazo[2,1-f][1,2,4]triazine-7-carbonitrile (6.2 mg).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09273057B2
Source datasetuspto-grants-2016_03
ORD IDord-b49a6054ceb24159816cfa7b174d0a66
Source noteuspto-grants-2016_03