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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2079636Generated: October 31, 2026

Sulfanilamide → 4-[(8-Bromo-6-fluoro-2-quinazolinyl)amino]benzenesulfonamide

https://huagongshe.com/reaction/2079636

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSulfanilamideHCID 5333—
ReactantEthyl AcetateHCID 8857—
Reactant8-Bromo-2-chloro-6-fluoroquinazolineHCID 59199299—
SolventIsopropanolHCID 3776—
Product4-[(8-Bromo-6-fluoro-2-quinazolinyl)amino]benzenesulfonamideHCID 2501626381%

Reaction Conditions

Temperature120 °C

Reaction Steps

To a 0.4M suspension of 8-bromo-2-chloro-6-fluoroquinazoline in isopropanol was added 4-aminobenzensulfonamide (1 eq). The reaction mixture was heated to 120° C. in an oil bath for 2 days. LCMS showed that reaction was complete under the condition. Ethyl acetate was added to the reaction flask and the suspension was stirred at ambient temperature for 30 min and was filtered. Filter cake was rinsed with hexane and dried in vacuum to give product in 81% yield. ES/MS m/z 397/399 (MH+).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07932262B2
Source datasetuspto-grants-2011_04
ORD IDord-23d7a533e393465fa320ea2cc31c2812
Source noteuspto-grants-2011_04