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Pyrrolidine → Benzo[b]thiophene-2-sulfonic acid {2-[2-methoxy-5-(2-pyrrolidin-1-yl-ethanesulfonyl)-benzenesulfonylamino]-phenyl}-amide

HRID 730225
Notes
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Reaction equation

HRID 730225 reaction equation
[CH:1]([S:3]([C:6]1[CH:7]=[CH:8][C:9]([O:35][CH3:36])=[C:10]([S:12]([NH:15][C:16]2[CH:21]=[CH:20][CH:19]=[CH:18][C:17]=2[NH:22][S:23]([C:26]2[S:30][C:29]3[CH:31]=[CH:32][CH:33]=[CH:34][C:28]=3[CH:27]=2)(=[O:25])=[O:24])(=[O:14])=[O:13])[CH:11]=1)(=[O:5])=[O:4])=[CH2:2].[NH:37]1[CH2:41][CH2:40][CH2:39][CH2:38]1>C1COCC1.C(Cl)Cl>[CH3:36][O:35][C:9]1[CH:8]=[CH:7][C:6]([S:3]([CH2:1][CH2:2][N:37]2[CH2:41][CH2:40][CH2:39][CH2:38]2)(=[O:4])=[O:5])=[CH:11][C:10]=1[S:12]([NH:15][C:16]1[CH:21]=[CH:20][CH:19]=[CH:18][C:17]=1[NH:22][S:23]([C:26]1[S:30][C:29]2[CH:31]=[CH:32][CH:33]=[CH:34][C:28]=2[CH:27]=1)(=[O:25])=[O:24])(=[O:13])=[O:14]
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

5

Reactant 2

HCID 31268PyrrolidineHCID 86605045Benzo[b]thiophene-2-sulfonic acid [2-(5-ethenesulfonyl-2-methoxybenzenesulfonylamino)phenyl] amide

Product 1

HCID 11686009Benzo[b]thiophene-2-sulfonic acid {2-[2-methoxy-5-(2-pyrrolidin-1-yl-ethanesulfonyl)-benzenesulfonylamino]-phenyl}-amide

Reagents, catalysts & solvents 2

HCID 6344DichloromethaneSolvent
HCID 8028
Tetrahydrofuran
Solvent

Procedure

To a solution of benzo[b]thiophene-2-sulfonic acid [2-(5-ethenesulfonyl-2-methoxybenzenesulfonylamino)phenyl]-amide (0.2 mmol, prepared as in Example 19) in dry THF (2 mL) was added 0.2 mL of pyrrolidine. The resulting reaction mixture was stirred at room temperature for 1 h. The reaction mixture was diluted with DCM (10 mL) and was washed with saturated sodium chloride aqueous solution (25 mL). The organic phase was dried over anhydrous sodium sulfate and concentrated under vacuum. The residue obtained was purified by flash column chromatography eluting with EtOAc then DCM/methanol/AcOH (100:2:1 to 100:10:2) to furnish 121 mg of benzo[b]thiophene-2-sulfonic acid {2-[2-methoxy-5-(2-pyrrolidin-1-yl-ethanesulfonyl)-benzenesulfonylamino]phenyl} amide. LC: Tr 0.94 min; MS: 636.8 (M+1)+. 1H NMR (CDCl3, 400 MHz): δ 1.68 (m, 4H), 2.38 (m, 4H), 2.78(t, 2H), 3.28 (t, 2H), 4.20 (s, 3H), 6.76 (d, 1H), 6.96 (d, 1H), 7.14 (t, 1H), 7.21 (d, 1H), 7.36 (d, 1H), 7.41 (t, 1H), 7.49(t, 1H), 7.60 (s, 1H), 7.79 (d, 1H), 7.83 (d, 1H), 8.07 (d, 1H), 8.26 (d, 1H) ppm.

Workup

  1. customThe resulting reaction mixture
  2. washwas washed with saturated sodium chloride aqueous solution (25 mL)
  3. dry with materialThe organic phase was dried over anhydrous sodium sulfate
  4. concentrationconcentrated under vacuum
  5. customThe residue obtained
  6. customwas purified by flash column chromatography
  7. washeluting with EtOAc

Sources & evidence

ORD record
ord-38c2dc68d58147aea58165d3ba1e96ad
Source dataset
uspto-grants-2009_09
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US07582673B2

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes