Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1808426Generated: November 4, 2026

Trifluoroacetic acid → Benzylurea

https://huagongshe.com/reaction/1808426

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTrifluoroacetic acidHCID 6422—
Reactanttert-butyl 5-(2-(3-(3-benzylureido)phenyl)quinazolin-4-ylamino)-1H-indazole-1-carboxylateHCID 59361946—
SolventDichloromethaneHCID 6344—
ProductBenzylureaHCID 10853—

Reaction Steps

To tert-butyl 5-(2-(3-(3-benzylureido)phenyl)quinazolin-4-ylamino)-1H-indazole-1-carboxylate (30 mg, 0.051 mmol) was added a solution of 1:1 TFA:CH2Cl2 (2 mL) and stirred at RT for 2 h. The reaction mixture was concentrated in vacuo and left under high vacuum for several hours. The crude product was triturated with ethyl ether to afford 14344-(1H-indazol-5-ylamino)quinazolin-2-yl)phenyl)-3-benzylurea. (25 mg, 100%)

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08357693B2
Source datasetuspto-grants-2013_01
ORD IDord-4e939e0635644ecdbf6fd5e95e506ad7
Source noteuspto-grants-2013_01