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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 408312Generated: October 30, 2026

Lithium Hydroxide → HCID 60205498, compound

https://huagongshe.com/reaction/408312

Reaction equation

Participants

RoleNameHCIDCharge
ReactantLithium HydroxideHCID 3939—
ReactantPicolinoyl Chloride HydrochlorideHCID 135033—
Reactant5-bromo-4-fluoro-1H-pyrrolo[2,3-b]pyridin-3-amineHCID 60205276—
SolventPyridineHCID 1049—
SolventTetrahydrofuranHCID 8028—
ProductHCID 60205498HCID 6020549882.3%

Reaction Steps

Picolinoyl chloride hydrochloride (501 mg, 2.82 mmol) was added to a solution of 5-bromo-4-fluoro-1H-pyrrolo[2,3-b]pyridin-3-amine (324 mg, 1.41 mmol, Example 1, Step H) in pyridine (5 mL). The reaction was stirred at room temperature for 10 minutes, and the pyridine was removed in vacuo. The residue obtained was dissolved in THF (5 mL), treated with 2N LiOH (3 mL), and stirred for 20 minutes. THF was then removed in vacuo, and water (20 mL) was added. The solid formed was collected by filtration and dried to provide N-(5-bromo-4-fluoro-1H-pyrrolo[2,3-b]pyridin-3-yl)picolinamide (389 mg, 82% yield) as a solid. 1H NMR (400 MHz, (CD3)2SO) δ 12.17 (br s, 1H), 10.39 (s, 1H), 8.76 (d, 1H), 8.40 (d, 1H), 8.17-8.15 (m, 1H), 8.09 (dt, 1H), 7.87 (d, 1H), 7.71-7.68 (m, 1H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08758830B2
Source datasetuspto-grants-2014_06
ORD IDord-9eb676b177434175a7c33eab0f532f19
Source noteuspto-grants-2014_06