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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 724200Generated: October 31, 2026

Water → HCID 21876263, compound

https://huagongshe.com/reaction/724200

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantTriethylamineHCID 8471—
ReactantMethanesulfonyl chlorideHCID 31297—
ReactantHCID 21875600HCID 21875600—
SolventDichloromethaneHCID 6344—
ProductHCID 21876263HCID 2187626350%

Reaction Steps

A mixture of 6-chloro-2-ethyl-1-[4-(2-hydroxyethyl)phenyl]-1H-benzimidazole-5-carboxamide (Example 111, step 4, 500 mg, 1.45 mmol), triethylamine (293 mg, 2.90 mmol) and methansulfonyl chloride (322 mg, 2.9 mmol) in dichloromethane (20 ml) was stirred at room temperature for 6 h. The reaction mixture was poured into water, and extracted with dichloromethane (50 ml). The organic layer was washed with brine (50 ml), then dried (Na2SO4). After removal of solvent, the crude product was purified by TLC with hexane/ethyl acetate (1:1) to afford 304 mg (50%) of the title compound as white solids.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07141580B2
Source datasetuspto-grants-2006_11
ORD IDord-e383ec720005499ea4c709654dcbf49e
Source noteuspto-grants-2006_11