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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 217837Generated: October 29, 2026

2-Fluoro-5-(trifluoromethyl)phenyl isocyanate → 1-(2-Fluoro-5-(trifluoromethyl)phenyl)-3-(3-(3-oxo-3,4-dihydropyrido[2,3-b]pyrazin-8-yloxy)phenyl)urea

https://huagongshe.com/reaction/217837

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-Fluoro-5-(trifluoromethyl)phenyl isocyanateHCID 2733380—
Reactant8-(3-aminophenoxy)pyrido[2,3-b]pyrazin-3(4H)-oneHCID 46901593—
Product1-(2-Fluoro-5-(trifluoromethyl)phenyl)-3-(3-(3-oxo-3,4-dihydropyrido[2,3-b]pyrazin-8-yloxy)phenyl)ureaHCID 4413390742%

Reaction Steps

Method F2 was used with 8-(3-aminophenoxy)pyrido[2,3-b]pyrazin-3(4H)-one and 1-fluoro-2-isocyanato-4-(trifluoromethyl)benzene to afford the title compound as a white solid (30 mg, 42%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08198279B2
Source datasetuspto-grants-2012_06
ORD IDord-18ec91bea75b459884c5af2c0cb3f076
Source noteuspto-grants-2012_06