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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2179565Generated: October 30, 2026

Diisopropylethylamine → N-[(3R)-1-Azabicyclo[2.2.2]oct-3-yl]-5-bromo-1-benzofuran-2-carboxamide hydrochloride

https://huagongshe.com/reaction/2179565

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiisopropylethylamineHCID 81531—
Reactant5-Bromo-2-benzofurancarboxylic acidHCID 735247—
ReactantMethanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 9886157—
Reactant(R)-(+)-3-Aminoquinuclidine DihydrochlorideHCID 12494972—
SolventDimethylformamideHCID 6228—
ProductN-[(3R)-1-Azabicyclo[2.2.2]oct-3-yl]-5-bromo-1-benzofuran-2-carboxamide hydrochlorideHCID 67314004—

Reaction Steps

240 mg (0.98 mmol) of 5-bromobenzofuran-2-carboxylic acid, 200 mg (0.98 mmol) of (R)-3-aminoquinuclidine dihydrochloride, 450 mg (1.18 mmol) of HATU, 460 mg (3.54 mmol) of N,N-diisopropylethylamine and 2.0 ml of DMF are reacted by general method C. The reaction mixture is purified by preparative HPLC. Finally, an excess of 1N hydrochloric acid is added to the product. The solvent is removed under reduced pressure. 202 mg (53% of theory) of the title compound are isolated.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09067931B2
Source datasetuspto-grants-2015_06
ORD IDord-836fa1e450bd4ff2b20724030230aa59
Source noteuspto-grants-2015_06