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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 217813Generated: October 28, 2026

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

https://huagongshe.com/reaction/217813

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-Fluoro-5-(trifluoromethyl)phenyl isocyanateHCID 2733380—
Reactant8-(4-amino-3-(methylthio)phenoxy)pyrido[3,2-b]pyrazin-3(4H)-oneHCID 46901091—
Product1-(2-Fluoro-5-(trifluoromethyl)phenyl)-3-(2-(methylthio)-4-(3-oxo-3,4-dihydropyrido[3,2-b]pyrazin-8-yloxy)phenyl)ureaHCID 4413171062%

Reaction Steps

Using Method F2 with 8-(4-amino-3-(methylthio)phenoxy)pyrido[3,2-b]pyrazin-3(4H)-one and 2-fluoro-5-trifluoromethylphenyl isocyanate, the title compound (26 mg, 62%) was obtained as a powder.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08198279B2
Source datasetuspto-grants-2012_06
ORD IDord-2d601c0b0d4c4e4d97db636c85b62fe5
Source noteuspto-grants-2012_06