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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1012690Generated: October 25, 2026

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

https://huagongshe.com/reaction/1012690

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 numberUS07977485B2
Source datasetuspto-grants-2011_07
ORD IDord-ec656e3cf7a54e1c8670571d411d84f5
Source noteuspto-grants-2011_07