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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2038660Generated: November 2, 2026

4-Fluorobenzoic Acid → HCID 178436916, compound

https://huagongshe.com/reaction/2038660

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-Fluorobenzoic AcidHCID 9973—
ReactantDiisopropylethylamineHCID 81531—
ReactantSodium BicarbonateHCID 516892—
ReactantMethanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 9886157—
Reactant5-Ethyl-2-fluoro-4-[3-(4,5,6,7-tetrahydro-1H-imidazol[4,5-c]pyridin-2-yl)-1H-indazol-6-yl]-phenol trihydrobromide saltHCID 178419240—
SolventDimethylformamideHCID 6228—
ProductHCID 178436916HCID 17843691619.3%

Reaction Steps

To a solution of 5-ethyl-2-fluoro-4-[3-(4,5,6,7-tetrahydro-1H-imidazo[4,5-c]pyridin-2-yl)-1H-indazol-6-yl]-phenol trihydrobromide salt (Preparation 25, 50 mg, 80 μmol) in DMF (1 mL), was added HATU (32 mg, 84 μmol), and DIPEA (56 μL, 320 μmol). The reaction mixture was stirred at room temperature for 30 minutes. 4-Fluoro-benzoic acid (11.2 mg, 80 μmol) was added to the reaction mixture and stirring was continued for 18 hours. Saturated aqueous sodium hydrogen carbonate solution (5 mL) was added to the reaction mixture. The resulting solid was collected by filtration, washing with further saturated aqueous sodium hydrogen carbonate solution. The crude material was purified by HPLC Method B to afford 7.7 mg of the title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08575336B2
Source datasetuspto-grants-2013_11
ORD IDord-625b375503bc431d8dd96c1ca2939b85
Source noteuspto-grants-2013_11