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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 429292Generated: October 30, 2026

Hydrochloric Acid → HCID 20703634, compound

https://huagongshe.com/reaction/429292

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantBenzyl BromideHCID 7498—
ReactantPotassium CarbonateHCID 11430—
ReactantHCID 20703633HCID 20703633—
SolventDimethyl SulfoxideHCID 679—
SolventEthyl AcetateHCID 8857—
ProductHCID 20703634HCID 20703634—

Reaction Steps

To a solution of 2-[1-(1-methylpiperazine-2-yl)-ethylamino]-4-[benzimidazol-1-yl]-pyrimidine (EXAMPLE 20; 3 mg) in 4 mL of DMSO was added benzyl bromide (2 μL) and K2CO3 (2.2 mg). The mixture was stirred for 2d at room temperature, then diluted with 5 mL of EtOAc and poured into 10 mL of 1N HCl. The phases were separated and the aqueous phase was basified (pH>11) with 5N NaOH and extracted with 4×5 mL of EtOAc. The combined organics were dried over Na2SO4 and concentrated. The residue was purified by preparative thin-layer chromatography, eluting with 95:5 CH2Cl2—MeOH to provide 1.9 mg of the title compound. Mass spectrum (ESI) 428.4 (M+1).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06316444B1
Source datasetuspto-grants-2001_11
ORD IDord-44d96371fe3b450093f899504f0935ca
Source noteuspto-grants-2001_11