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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 217815Generated: October 29, 2026

1-Chloro-4-isocyanato-2-(trifluoromethyl) benzene → 1-(4-Chloro-3-(trifluoromethyl)phenyl)-3-(2-fluoro-4-(3-oxo-3,4-dihydro pyrido[2,3-b]pyrazin-8-yloxy)phenyl)urea

https://huagongshe.com/reaction/217815

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1-Chloro-4-isocyanato-2-(trifluoromethyl) benzeneHCID 2733265—
Reactant8-(4-amino-3-fluorophenoxy)pyrido[2,3-b]pyrazin-3(4H)-oneHCID 46900932—
Product1-(4-Chloro-3-(trifluoromethyl)phenyl)-3-(2-fluoro-4-(3-oxo-3,4-dihydro pyrido[2,3-b]pyrazin-8-yloxy)phenyl)ureaHCID 4413171188%

Reaction Steps

Method F2 was used with 8-(4-amino-3-fluorophenoxy)pyrido[2,3-b]pyrazin-3(4H)-one and 3-trifluoromethyl-4-chloro-phenylisocyanate to afford the title compound, yield: 88%.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08198279B2
Source datasetuspto-grants-2012_06
ORD IDord-6b39aee9c52c400181093f0603524d70
Source noteuspto-grants-2012_06