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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 253978Generated: October 25, 2026

Trifluoroacetic acid → 5-Bromo-3-(5-(2,3-dichlorophenyl)thiazol-4-yl)pyridin-2-amine

https://huagongshe.com/reaction/253978

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTrifluoroacetic acidHCID 6422—
ReactantN-(4-methoxybenzyl)-5-bromo-3-(5-(2,3-dichlorophenyl)thiazol-4-yl)pyridin-2-amineHCID 58179565—
SolventDichloromethaneHCID 6344—
Product5-Bromo-3-(5-(2,3-dichlorophenyl)thiazol-4-yl)pyridin-2-amineHCID 581795702%

Reaction Steps

A solution of N-(4-methoxybenzyl)-5-bromo-3-(5-(2,3-dichlorophenyl)thiazol-4-yl)pyridin-2-amine (110 mg) and TFA (100 μL) in methylene chloride (2 mL) was stirred at 40° C. overnight. The reaction was concentrated and purified by reversed-phase HPLC to give 5-bromo-3-(5-(2,3-dichlorophenyl)thiazol-4-yl)pyridin-2-amine as a white solid [1.1 mg, 2% yield; LC-MS M+H=519.9; 1H-NMR (300 MHz, methanol-d4) 9.17 (1H, d), 7.95 (1H, d), 7.60-7.63 (2H, m), 7.34-7.35 (1H, m), 7.27 (1H, dd)].

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07872031B2
Source datasetuspto-grants-2011_01
ORD IDord-fb2d331cd46c4177ad9497fee03ffd3f
Source noteuspto-grants-2011_01