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p-Toluenesulfonic acid → HCID 178427522, Verbindung

HRID 652369
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 652369
[NH:1]([C:13]([O:15][C:16]([CH3:19])([CH3:18])[CH3:17])=[O:14])[C@H:2]([C:10]([OH:12])=O)[CH2:3][C:4]1[CH:9]=[CH:8][CH:7]=[CH:6][CH:5]=1.[NH2:20][C@H:21]([C:29]([O:31][CH2:32][C:33]1[CH:38]=[CH:37][CH:36]=[CH:35][CH:34]=1)=[O:30])[CH2:22][CH2:23][CH2:24][NH:25][C:26](=[NH:28])[NH2:27].[S:39](O)([C:42]1[CH:48]=[CH:47][C:45]([CH3:46])=[CH:44][CH:43]=1)(=[O:41])=[O:40].C1C=CC2N(O)N=NC=2C=1>CN(C=O)C.CCCCCC.C(OCC)(=O)C>[NH:1]([C:13]([O:15][C:16]([CH3:19])([CH3:18])[CH3:17])=[O:14])[C@H:2]([C:10]([NH:20][C@H:21]([C:29]([O:31][CH2:32][C:33]1[CH:38]=[CH:37][CH:36]=[CH:35][CH:34]=1)=[O:30])[CH2:22][CH2:23][CH2:24][NH:25][C:26](=[NH:27])[NH:28][S:39]([C:42]1[CH:48]=[CH:47][C:45]([CH3:46])=[CH:44][CH:43]=1)(=[O:41])=[O:40])=[O:12])[CH2:3][C:4]1[CH:5]=[CH:6][CH:7]=[CH:8][CH:9]=1
KomponentenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

8

Edukt 4

HCID 6101p-Toluenesulfonic acidHCID 757711-HydroxybenzotriazoleHCID 77857L-Phenylalanine, N-[(1,1-dimethylethoxy)carbonyl]-HCID 178512913HCID 178512913, Verbindung

Produkt 1

HCID 178427522HCID 178427522, Verbindung

Reagenzien, Katalysatoren, Lösungsmittel 3

HCID 6228
Dimethylformamide
Lösungsmittel
HCID 8058HexaneLösungsmittel
HCID 8857Ethyl AcetateLösungsmittel2×

Versuchsvorschrift

Boc-Phe-OH (4 g, 15 mmole), H-Arg-OBzl.TosOH (8.9 g, 15 mmole) and HOBt (2.1 g, 15.75 mmole) were dissolved in DMF (25 ml), and WSCI (12.9 ml, 15.75 mmole) was added dropwise thereto while cooling, and the thus-obtained mixture (pH=4) was stirred overnight. To the reaction solution, AcOEt (300 ml) was added thereto, and the solution was washed with 1N HCl, water and 5% NaHCO3 and water, in order, and dried with Na2SO4 . AcOEt was distilled off under reduced pressure, and the thus-obtained residue was treated with ethyl acetate, ether, and n-hexane to give an oily substance. The substance was obtained by decantation and treated with ethyl acetate and hexane to give precipitates of the object product (6.89 g, 60%).

Aufarbeitung

  1. additionWSCI (12.9 ml, 15.75 mmole) was added dropwise
  2. temperaturewhile cooling
  3. washthe solution was washed with 1N HCl, water and 5% NaHCO3 and water, in order
  4. dry with materialdried with Na2SO4
  5. distillationAcOEt was distilled off under reduced pressure
  6. additionthe thus-obtained residue was treated with ethyl acetate, ether, and n-hexane
  7. customto give an oily substance
  8. customThe substance was obtained by decantation
  9. customto give
  10. customprecipitates of the object product (6.89 g, 60%)

Quellen und Nachweise

ORD-Eintrag
ord-33c46450a8d148c4a62aa1d1f8fbf767
Quelldatensatz
uspto-grants-1987_06
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US04670540

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