N-[(3R)-1-azabicyclo[2.2.2]oct-3-yl]-3-chloro-6-nitro-1-benzothiophene-2-carboxamide hydrochloride → N-[(3R)-1-Azabicyclo[2.2.2]oct-3-yl]-3-chloro-6-amino-1-benzothiophene-2-carboxamide dihydrochloride

HRID 15481Notes

Reaction equation

HRID 15481 reaction equation
[ClH:1].[N:2]12[CH2:9][CH2:8][CH:5]([CH2:6][CH2:7]1)[C@@H:4]([NH:10][C:11]([C:13]1[S:14][C:15]3[CH:22]=[C:21]([N+:23]([O-])=O)[CH:20]=[CH:19][C:16]=3[C:17]=1[Cl:18])=[O:12])[CH2:3]2>[Sn](Cl)Cl.CN(C=O)C>[ClH:18].[ClH:1].[N:2]12[CH2:7][CH2:6][CH:5]([CH2:8][CH2:9]1)[C@@H:4]([NH:10][C:11]([C:13]1[S:14][C:15]3[CH:22]=[C:21]([NH2:23])[CH:20]=[CH:19][C:16]=3[C:17]=1[Cl:18])=[O:12])[CH2:3]2

Participants

4

Reactant 1

HCID 68431015N-[(3R)-1-azabicyclo[2.2.2]oct-3-yl]-3-chloro-6-nitro-1-benzothiophene-2-carboxamide hydrochloride

Product 1

HCID 68431670N-[(3R)-1-Azabicyclo[2.2.2]oct-3-yl]-3-chloro-6-amino-1-benzothiophene-2-carboxamide dihydrochloride

Reagents, catalysts & solvents 2

HCID 6228DimethylformamideSolventHCID 24479Stannous ChlorideSolvent

Procedure

83 mg (0.23 mmol) of N-[(3R)-1-azabicyclo[2.2.2]oct-3-yl]-3-chloro-6-nitro-1-benzothiophene-2-carboxamide hydrochloride are dissolved in 1.5 ml of 2M tin(II) chloride solution in DMF and stirred at RT for 14 h. The reaction mixture is purified by preparative HPLC. The product fractions are concentrated, dissolved in a mixture of methanol and 4M HCl in dioxane, then again concentrated and dried under high vacuum. 53 mg (57.2% of theory) of the title compound are obtained.

Workup

  1. customThe reaction mixture is purified by preparative HPLC
  2. concentrationThe product fractions are concentrated
  3. dissolutiondissolved in a mixture of methanol and 4M HCl in dioxane
  4. concentrationagain concentrated
  5. customdried under high vacuum

Sources & evidence

ORD record
ord-77a62f0e4b7944e3b6ec94e968bf016a
Source dataset
uspto-grants-2010_06
Patent number
US07732477B2

Reaction notes

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