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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 15454Generated: November 3, 2026

Diisopropylethylamine → N-[(3R)-1-Azabicyclo[2.2.2]oct-3-yl]-5,7-dichloro-1-benzofuran-2-carboxamide hydrochloride

https://huagongshe.com/reaction/15454

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiisopropylethylamineHCID 81531—
Reactant5,7-dichlorobenzofuran-2-carboxylic AcidHCID 4771841—
ReactantMethanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 9886157—
SolventDimethylformamideHCID 6228—
ProductN-[(3R)-1-Azabicyclo[2.2.2]oct-3-yl]-5,7-dichloro-1-benzofuran-2-carboxamide hydrochlorideHCID 68431922—

Reaction Steps

227 mg (0.98 mmol) of 5,7-dichlorobenzofuran-2-carboxylic acid, 200 mg (0.98mmol) of R-3-aminoquinuclidine dihydrochloride, 449 mg (1.18 mmol) of HATU, 458 mg (3.54 mmol) of N,N-diisopropylethylamine and 2.0 ml of DMF are reacted according to the general procedure (variant B). The reaction mixture is purified by preparative HPLC. An excess of 1N hydrochloric acid is then added to the product. The solvent is removed under reduced pressure. 169 mg (46% of theory) of the title compound are isolated.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07732477B2
Source datasetuspto-grants-2010_06
ORD IDord-4f851408de2a460f8b63829dc3e3254a
Source noteuspto-grants-2010_06