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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 74230Generated: October 30, 2026

Hydrochloric Acid → 1-(2-Aminoethyl)-5-(benzoxazol-2-yl)-2-methylbenzimidazole hydrochloride

https://huagongshe.com/reaction/74230

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant5-(Benzoxazol-2-yl)-1-(2-(tert-butoxycarbonylamino)ethyl)-2-methylbenzimidazoleHCID 67498579—
Solvent1,4-DioxaneHCID 31275—
Product1-(2-Aminoethyl)-5-(benzoxazol-2-yl)-2-methylbenzimidazole hydrochlorideHCID 67497703—

Reaction Steps

5-(Benzoxazol-2-yl)-1-(2-(tert-butoxycarbonylamino)ethyl)-2-methylbenzimidazole (see Working Example 55-2) (100 mg, 0.255 mmol) was added to a 4N hydrochloric acid solution in dioxane (10 mL), and this was heated to reflux for 5 hours. After the reaction was complete, this was concentrated to dryness to yield the title compound (95 mg, quant.) as white crystals.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08829035B2
Source datasetuspto-grants-2014_09
ORD IDord-425ada4b150b40c0977927b116c48c29
Source noteuspto-grants-2014_09