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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 728167Generated: October 30, 2026

Water → HCID 178428001, compound

https://huagongshe.com/reaction/728167

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantGuanidine HydrochlorideHCID 5742—
ReactantPotassium HydroxideHCID 14797—
ReactantHCID 23666707HCID 23666707—
SolventDimethylformamideHCID 6228—
SolventEthyl AcetateHCID 8857—
ProductHCID 178428001HCID 17842800133.1%

Reaction Steps

Potassium 6-[2-(3,7-dimethylimidazo[1,2-a]pyridin-2-yl)ethyl]-2-benzoxazolesulfonate (1.10 g) was added to a mixture of guanidine hydrochloride (257 mg) and potassium hydroxide (150 mg) in N,N-dimethylformamide (12 ml). After being stirred for 4 hours at ambient temperature, the reaction mixture was mixed with water (110 ml) and ethyl acetate (20 ml). The resulting precipitate was collected, washed with water and recrystallized from ethanol to give 6-[2-(3,7-dimethylimidazo[1,2-a]-pyridin-2-yl)ethyl]-2-guanidinobenzoxazole (0.31 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05047411
Source datasetuspto-grants-1991_09
ORD IDord-f08b11b4f4ca4924b6e1f0b554a78d99
Source noteuspto-grants-1991_09