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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1276922Generated: October 31, 2026

Water → HCID 18681088, compound

https://huagongshe.com/reaction/1276922

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantBenzenesulfonyl chlorideHCID 7369—
ReactantTriethylamineHCID 8471—
ReactantHCID 18680884HCID 18680884—
SolventChloroformHCID 6212—
ProductHCID 18681088HCID 1868108864.1%

Reaction Steps

Triethylamine (0.185 g) and benzenesulfonyl chloride (0.210 g) were added to a solution of 0.340 g of 1-(4-aminobenzyl)-2-methyl-6-[(2-pyridylmethyl)carbamoyl]benzimidazole in 10 ml of chloroform, and the mixture was stirred at room temperature for 8 hours. Water was added thereto to stop the reaction, and the reaction mixture was extracted with chloroform. The organic layer was washed three times with water, dried, and concentrated. The residue was then purified through silica-gel column chromatography (eluent: a mixture of ethyl acetate and methanol at a ratio of 100:1 to 4:1) to give 0.300 g of 1-[4-(benzenesulfonylamino)benzyl]-2-methyl-6-[(2-pyridylmethyl)carbamoyl]benzimidazole (263).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06166219
Source datasetuspto-grants-2000_12
ORD IDord-b6690f4beb3c4e039af427165d2cf64e
Source noteuspto-grants-2000_12