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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1923928Generated: October 30, 2026

Water → HCID 86652142, compound

https://huagongshe.com/reaction/1923928

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
Reactant2-Fluoroethyl bromideHCID 12982—
ReactantDiisopropylethylamineHCID 81531—
Reactant1657014-42-0HCID 67045163—
SolventDimethylformamideHCID 6228—
ProductHCID 86652142HCID 8665214215.8%

Reaction Conditions

Temperature80 °C

Reaction Steps

(R)-N-(4-(3-Aminopiperidin-1-yl)-5-bromo-1H-pyrrolo[2,3-b]pyridin-3-yl)cyclopropanecarboxamide hydrochloride (0.112 g, 0.248 mmol; Example 29, Step C), 1-bromo-2-fluoroethane (0.0222 mL, 0.298 mmol) and DIEA (0.173 mL, 0.993 mmol, d 0.742) were placed in DMF (2 mL) and heated to 80° C. for 36 hours. The reaction was then cooled to room temperature, poured into water, and extracted with EtOAc. The combined organic fractions were dried (MgSO4), filtered, and concentrated to give the crude product, which was purified by reverse phase chromatography (Biotage SP4, C-18 40M+, 5-50% water:ACN). The product was next dissolved in minimal DCM (with MeOH to aid solubility) and added to a stirring solution of 1M HCl in ether. The resulting solid was filtered, washed with ether and dried to give (R)-N-(5-bromo-4-(3-(2-fluoroethylamino)piperidin-1-yl)-1H-pyrrolo[2,3-b]pyridin-3-yl)cyclopropanecarboxamide hydrochloride (0.018 g, 15% yield) as a solid. 1H NMR (400 MHz, D2O) δ 8.23 (s, 1H), 7.26 (s, 1H), 4.69-4.67 (m, 1H), 4.56-4.55 (m, 1H), 3.84-3.81 (m, 1H), 3.57-3.54 (m, 1H), 3.42-3.16 (m, 5H), 2.22-2.19 (m, 1H), 1.80-1.73 (m, 3H), 1.57-1.55 (m, 1H), 0.90-0.80 (m, 4H). LCMS (APCI+) m/z 424, 426 (M+H)+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08178131B2
Source datasetuspto-grants-2012_05
ORD IDord-9c1cec7c4d474f59b5ba4d9d0b53d898
Source noteuspto-grants-2012_05