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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1966733Generated: October 31, 2026

Sodium Carbonate → HCID 58541985, compound

https://huagongshe.com/reaction/1966733

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium CarbonateHCID 10340—
Reactant2-Aminopyrimidine-5-boronic acid, pinacol esterHCID 17750212—
ReactantHCID 58541950HCID 58541950—
CatalystHCID 178418397HCID 178418397—
SolventDimethylformamideHCID 6228—
SolventEthyl AcetateHCID 8857—
ProductHCID 58541985HCID 585419858.1%

Reaction Conditions

Temperature110 °C

Reaction Steps

To a sealed vial is added 5-bromo-1-tert-butyl-2-[2-(2H-tetrazol-5-yl)-phenyl]-1H-benzimidazole (190 mg, 0.478 mmol) in DMF (5 mL), followed by the addition of 2-aminopyrimidine-5-boronic acid pinacol ester (126 mg, 0.57 mmol), tetrakis(triphenylphosphine)palladium(0) (55 mg, 0.048 mmol) and 2M aq. Na2CO3 (1 mL, 2 mmol). The reaction mixture is heated under Argon at 110° C. for 3 hours. The residue is diluted with EtOAc, washed with brine, dried with Na2SO4, filtered and concentrated. The residue is loaded onto a silica gel column. The column is eluted with 0-20% 7M NH3 in MeOH/CH2Cl2. The product fractions are collected and concentrated to afford the title compound (16 mg, 8%) as a light yellow solid. LCMS (ESMS): m/z 412.67 (M++1)

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08420655B2
Source datasetuspto-grants-2013_04
ORD IDord-ceabf347d1a54e13a8ef81363dd33d66
Source noteuspto-grants-2013_04