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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 79614Generated: October 23, 2026

Nicotinic Acid → N-(5-bromo-4-fluoro-1H-pyrrolo[2,3-b]pyridin-3-yl)nicotinamide

https://huagongshe.com/en/reaction/79614

Reaction equation

Participants

RoleNameHCIDCharge
ReactantNicotinic AcidHCID 938—
ReactantTriethylamineHCID 8471—
ReactantSodium CarbonateHCID 10340—
ReactantBis(2-oxo-3-oxazolidinyl)phosphinic chlorideHCID 152842—
Reactant5-bromo-4-fluoro-1H-pyrrolo[2,3-b]pyridin-3-amineHCID 60205276—
SolventLithium HydroxideHCID 3939—
SolventDimethylformamideHCID 6228—
ProductN-(5-bromo-4-fluoro-1H-pyrrolo[2,3-b]pyridin-3-yl)nicotinamideHCID 6020527755%

Reaction Steps

5-Bromo-4-fluoro-1H-pyrrolo[2,3-b]pyridin-3-amine (0.044 g, 0.19 mmol), nicotinic acid (0.0283 g, 0.230 mmol), and BOP-Cl (0.0584 g, 0.230 mmol) were placed in DMF (3 mL) at room temperature. Triethylamine (0.133 mL, 0.956 mmol) was then added, and the reaction was stirred for 1 hour at room temperature. The reaction was then diluted with 3M LiOH (aq., 0.5 mL) and stirred for 10 minutes. The reaction was then poured into saturated Na2CO3, extracted into DCM, and the organic fractions were combined, dried, filtered and concentrated to give a crude residue. The crude residue was triturated with 1:2 MeOH/DCM to give N-(5-bromo-4-fluoro-1H-pyrrolo[2,3-b]pyridin-3-yl)nicotinamide (0.035 g, 54.6% yield) as a solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08841304B2
Source datasetuspto-grants-2014_09
ORD IDord-5061f5e55d624c41b472ecbf109cce71
Source noteuspto-grants-2014_09