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

HRID 2179565Notes

Reaction equation

HRID 2179565 reaction equation
[Br:1][C:2]1[CH:3]=[CH:4][C:5]2[O:9][C:8]([C:10]([OH:12])=O)=[CH:7][C:6]=2[CH:13]=1.[ClH:14].Cl.[NH2:16][C@@H:17]1[CH:22]2[CH2:23][CH2:24][N:19]([CH2:20][CH2:21]2)[CH2:18]1.CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.C(N(CC)C(C)C)(C)C>CN(C=O)C>[ClH:14].[N:19]12[CH2:24][CH2:23][CH:22]([CH2:21][CH2:20]1)[C@@H:17]([NH:16][C:10]([C:8]1[O:9][C:5]3[CH:4]=[CH:3][C:2]([Br:1])=[CH:13][C:6]=3[CH:7]=1)=[O:12])[CH2:18]2

Participants

6

Reactant 4

HCID 81531DiisopropylethylamineHCID 7352475-Bromo-2-benzofurancarboxylic acidHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 12494972(R)-(+)-3-Aminoquinuclidine Dihydrochloride

Product 1

HCID 67314004N-[(3R)-1-Azabicyclo[2.2.2]oct-3-yl]-5-bromo-1-benzofuran-2-carboxamide hydrochloride

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

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.

Workup

  1. customThe reaction mixture is purified by preparative HPLC
  2. additionFinally, an excess of 1N hydrochloric acid is added to the product
  3. customThe solvent is removed under reduced pressure

Sources & evidence

ORD record
ord-836fa1e450bd4ff2b20724030230aa59
Source dataset
uspto-grants-2015_06
Patent number
US09067931B2

Reaction notes

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