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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1470517Generated: October 26, 2026

Potassium Carbonate → Dabigatran Ethyl Ester

https://huagongshe.com/reaction/1470517

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium CarbonateHCID 11430—
Reactant1-methyl-2[N-[4-amidinophenyl]aminomethyl]benzimidazol-5-yl-carboxylicacid-N-(2-pyridyl)-N-(2-ethoxycarbonylethyl)amide oxalateHCID 57389347—
SolventWaterHCID 962—
SolventAcetonitrileHCID 6342—
ProductDabigatran Ethyl EsterHCID 446804—

Reaction Conditions

Temperature12.5 °C

Reaction Steps

Dissolved 1-methyl-2-[N-[4-amidinophenyl]aminomethyl]benzimidazol-5-yl-carboxylicacid-N-(2-pyridyl)-N-(2-ethoxycarbonylethyl)amide oxalate compound of formula-6a (100 g) in a mixture of acetonitrile (1200 ml) and water (800 ml) and cooled to 10-15° C. Potassium carbonate (66.24 g) was added to the reaction mixture and stirred for 60 minutes at 10-15° C. Filtered the obtained solid, washed with water and then dried to get title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09006448B2
Source datasetuspto-grants-2015_04
ORD IDord-4de58e0a43bb4d5fbac88dc728973c97
Source noteuspto-grants-2015_04