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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 707402Generated: October 30, 2026

Sodium t-butoxide → HCID 178481628, compound

https://huagongshe.com/reaction/707402

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium t-butoxideHCID 23676156—
ReactantMethyl (2-chloro-5-fluoropyridin-3-yl)(methyl)carbamateHCID 86694180—
ReactantHCID 178454111HCID 178454111—
CatalystBrettPhos PalladacycleHCID 25112666—
SolventWaterHCID 962—
Solvent1,4-DioxaneHCID 31275—
ProductHCID 178481628HCID 17848162847.4%

Reaction Conditions

Temperature50 °C

Reaction Steps

Methyl (2-chloro-5-fluoropyridin-3-yl)(methyl)carbamate (intermediate 37, 0.343 g, 1.569 mmol), tert-butyl(trans-3-aminocyclobutyl)carbamate (0.292 g, 1.569 mmol), BrettPhos Precatalyst (0.125 g, 0.157 mmol), and sodium tert-butoxide (0.377 g, 3.92 mmol) were mixed in 1,4-dioxane (2 mL) under an argon atmosphere. The reaction mixture was heated to 50° C. and stirred for 30 min. The reaction mixture was diluted with water and extracted once with EtOAc. The organic layer was separated, washed with saturated aqueous sodium chloride, dried over magnesium sulfate, filtered, and concentrated in vacuo. The resulting crude product was purified by silica gel column chromatography eluting with EtOAc in hexanes to yield tert-butyl(trans-3-(6-fluoro-1-methyl-2-oxo-1 h-imidazo[4,5-b]pyridin-3(2h)-yl)cyclobutyl)carbamate (0.250 g, 0.743 mmol, 47.4% yield) as a white solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09174992B2
Source datasetuspto-grants-2015_11
ORD IDord-769a8634e25348ccbbb573feaa5e26e0
Source noteuspto-grants-2015_11