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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 573639Generated: October 29, 2026

Ethyl Acetate → HCID 68324064, compound

https://huagongshe.com/reaction/573639

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl AcetateHCID 8857—
ReactantPotassium CarbonateHCID 11430—
Reactant3-Methoxy-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridineHCID 3866161—
ReactantN-(3-bromo-2,6-dimethylthieno[2,3-b]pyridin-4-yl)-3-chlorobenzenesulfonamideHCID 68324076—
CatalystHCID 178418397HCID 178418397—
SolventWaterHCID 962—
Solvent1,4-DioxaneHCID 31275—
ProductHCID 68324064HCID 6832406424.8%

Reaction Conditions

Temperature120 °C

Reaction Steps

Under nitrogen, N-(3-bromo-2,6-dimethylthieno[2,3-b]pyridin-4-yl)-3-chlorobenzenesulfonamide (Example 61) (65 mg, 0.151 mmol) was dissolved in 1,4-dioxane (1.5 mL) and water (0.7 mL). 3-(Methyloxy)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine (53.1 mg, 0.226 mmol), tetrakis(triphenylphosphine)palladium(0) (17.40 mg, 0.015 mmol) and potassium carbonate (62.4 mg, 0.452 mmol) were added and the mixture heated in a microwave at 120° C. for 10 min. Ethyl acetate (10 mL) was then added and the mixture washed with water (2×5 mL). The organic layer was dried over MgSO4, filtered and the solvent removed in vacuo. The residue was purified by normal phase chromatography, eluting with a gradient of 0-5% MeOH in DCM, and then further purified by MDAP (acidic conditions), to give the title compound (17.2 mg). LCMS (A) m/z: 460 [M+1]+, Rt 0.90 min (acidic).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09029545B2
Source datasetuspto-grants-2015_05
ORD IDord-59f67debdbea4935b719efb3e6642519
Source noteuspto-grants-2015_05