Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1034691Generated: October 25, 2026

Lithium Hydroxide → N-(5-bromo-4-fluoro-1H-pyrrolo[2,3-b]pyridin-3-yl)-5-methylnicotinamide

https://huagongshe.com/reaction/1034691

Reaction equation

Participants

RoleNameHCIDCharge
ReactantLithium HydroxideHCID 3939—
ReactantTriethylamineHCID 8471—
ReactantSodium CarbonateHCID 10340—
ReactantBis(2-oxo-3-oxazolidinyl)phosphinic chlorideHCID 152842—
Reactant5-Methylnicotinic acidHCID 256208—
Reactant5-bromo-4-fluoro-1H-pyrrolo[2,3-b]pyridin-3-amineHCID 60205276—
SolventDichloromethaneHCID 6344—
ProductN-(5-bromo-4-fluoro-1H-pyrrolo[2,3-b]pyridin-3-yl)-5-methylnicotinamideHCID 6020533937.6%

Reaction Steps

5-Methylnicotinic acid (477 mg, 3.48 mmol), bis(2-oxooxazolidin-3-yl)phosphinic chloride (885 mg, 3.48 mmol) and triethylamine (880 mg, 8.69 mmol) were added to 5-bromo-4-fluoro-1H-pyrrolo[2,3-b]pyridin-3-amine (400 mg, 1.74 mmol) in DCM (200 mL). The reaction was stirred at room temperature for 1 hour, and then 3M aqueous LiOH (4 mL) was added. The reaction was stirred for 1 hour, and then saturated aqueous Na2CO3 was added (200 mL). The aqueous phase was extracted once with DCM (200 mL), and then the aqueous phase was filtered. The filtered cake was dried to yield N-(5-bromo-4-fluoro-1H-pyrrolo[2,3-b]pyridin-3-yl)-5-methylnicotinamide (228 mg, 37.6% yield) as a solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08545897B2
Source datasetuspto-grants-2013_10
ORD IDord-749bb3eb42604e9ba2800a0906d175cf
Source noteuspto-grants-2013_10