Ammonia → 1-(3,4,5-trimethoxybenzoyl)-3-(2-(4-(1H-benzimidazol-2-yl-amino)piperidin-1-yl)ethyl)-3-phenylpyrrolidine

HRID 323243

Reaction equation

HRID 323243 reaction equation
[CH3:1][O:2][C:3]1[CH:4]=[C:5]([CH:26]=[C:27]([O:31][CH3:32])[C:28]=1[O:29][CH3:30])[C:6]([N:8]1[CH2:12][CH2:11][C:10]([C:20]2[CH:25]=[CH:24][CH:23]=[CH:22][CH:21]=2)([CH2:13][CH2:14]OS(C)(=O)=O)[CH2:9]1)=[O:7].I.[NH:34]1[C:38]2[CH:39]=[CH:40][CH:41]=[CH:42][C:37]=2[N:36]=[C:35]1[NH:43][CH:44]1[CH2:49][CH2:48][NH:47][CH2:46][CH2:45]1.C(N(CC)C(C)C)(C)C.N>C(OCC)(=O)C.ClCCl.CO.C(OCC)(=O)C.C(#N)C>[CH3:32][O:31][C:27]1[CH:26]=[C:5]([CH:4]=[C:3]([O:2][CH3:1])[C:28]=1[O:29][CH3:30])[C:6]([N:8]1[CH2:12][CH2:11][C:10]([CH2:13][CH2:14][N:47]2[CH2:46][CH2:45][CH:44]([NH:43][C:35]3[NH:34][C:38]4[CH:39]=[CH:40][CH:41]=[CH:42][C:37]=4[N:36]=3)[CH2:49][CH2:48]2)([C:20]2[CH:25]=[CH:24][CH:23]=[CH:22][CH:21]=2)[CH2:9]1)=[O:7]

Participants

9

Reactant 4

HCID 222AmmoniaHCID 81531DiisopropylethylamineHCID 184646303,4,5-Trimethoxybenzoyl-3-phenyl-3-(2-methanesulfonyloxyethyl)pyrrolidineHCID 86754231(1H-benzimidazol-2-yl)(piperidin-4-yl)amine hydriodic acid

Product 1

HCID 99382691-(3,4,5-trimethoxybenzoyl)-3-(2-(4-(1H-benzimidazol-2-yl-amino)piperidin-1-yl)ethyl)-3-phenylpyrrolidine

Reagents, catalysts & solvents 4

HCID 6342AcetonitrileSolventHCID 6344DichloromethaneSolventHCID 8857Ethyl AcetateSolventHCID 21584119Ethylacetate methanolSolvent

Procedure

Combine 1-(3,4,5-trimethoxybenzoyl)-3-phenyl-3-(2-methanesulfonyloxyethyl)pyrrolidine (prepared from (−)-3-phenyl-3-(2-hydroxyethyl)pyrrolidine (R,R)-di-p-anisoyltartaric acid salt) (2.51 g, 5.4 mmol), (1H-benzimidazol-2-yl)(piperidin-4-yl)amine hydriodic acid salt (3.07 g, 6.5 mmol), N,N-diisopropylethylamine (4.8 mL, 27.6 mmol), and acetonitrile (70 mL). Heat to reflux. After 18 hours, cool to ambient temperature, dilute the reaction mixture with ethyl acetate, and extract with water and brine. Separate the organic layer, dry over Na2SO4, filter, and evaporate in vacuo to give a residue. Chromatograph the residue on silica gel eluting with 305 methanol/ethyl acetate containing concentrated aqueous ammonia 22 mL/3L. Evaporate the product containing fractions to give a residue. Combine the residue and dichloromethane, filter and evaporate in vacuo to give the title compound: Rf=0.17 (silica gel, 30% methanol/ethyl acetate).

Workup

  1. temperatureHeat to reflux
  2. extractionextract with water and brine
  3. customSeparate the organic layer
  4. dry with materialdry over Na2SO4
  5. filtrationfilter
  6. customevaporate in vacuo
  7. customto give a residue
  8. customEvaporate the product
  9. additioncontaining fractions
  10. customto give a residue
  11. filtrationfilter
  12. customevaporate in vacuo

Sources & evidence

ORD record
ord-61019cd3e3e9455ea63690876bd55da5
Source dataset
uspto-grants-2001_04
Patent number
US06211199B1

Linked notes

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