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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 921883Generated: October 30, 2026

Trifluoroacetic acid → HCID 89922950, compound

https://huagongshe.com/reaction/921883

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTrifluoroacetic acidHCID 6422—
ReactantAnisoleHCID 7519—
ReactantTert-butyl 4-(2-chloro-5-cyano-3-((7-cyano-4-(cyclopropyl(4-methoxybenzyl)amino)imidazo[2,1-f][1,2,4]triazin-2-yl)amino)phenyl)-3-oxopiperazine-1-carboxylateHCID 89923358—
Solvent1,2-DichloroethaneHCID 11—
ProductHCID 89922950HCID 8992295056.4%

Reaction Conditions

Temperature60 °C

Reaction Steps

TFA (1 mL) was added to a solution of tert-butyl 4-(2-chloro-5-cyano-3-((7-cyano-4-(cyclopropyl(4-methoxybenzyl)amino)imidazo[2,1-f][1,2,4]triazin-2-yl)amino)phenyl)-3-oxopiperazine-1-carboxylate (10 mg, 0.015 mmol) and anisole (6.53 μl, 0.060 mmol) in DCE (1 mL) and the reaction mixture was heated at 60° C. for 30 min. LC-MS indicated completion, then it was cooled and concentrated. The crude was dissolved in methanol and neutralized with 7N ammonia in methanol. After stirring for 10 min it was concentrated, purification via preparative HPLC gave the title compound as a yellow solid (3.8 mg).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09273057B2
Source datasetuspto-grants-2016_03
ORD IDord-197c2017c08048049a4a82d505415dd2
Source noteuspto-grants-2016_03